Sure! Here's the English translation of the long Khmer text you've provided, titled:
The Story: "The Best of Love"
In the kingdom of Samal, there lived a great king named King Samal Reach, who had a chief queen named Samal Devi, and seven daughters, each as beautiful as heavenly maidens.
Wishing to let them choose their own husbands, the king declared:
"Whichever man a daughter loves, she shall crown him with a garland of flowers."
A husband-selection ceremony was held. All six elder daughters found suitors and crowned them. However, the youngest daughter, Princess Pov Rochana Devi, did not choose anyone.
The king understood she had no affection for any of the suitors. So he had officials bring in dancers and music to create a lively scene—hoping she might feel joy and choose a man. Still, she remained silent and unmoved.
In the end, the king ordered all men in the land, old and young, to come forward—yet the youngest daughter still did not choose anyone.
Only one man remained—a hideous, frightening figure known simply as the sack man, whose face was hidden under a dark cloth sack.
The king reluctantly summoned him.
When he arrived and stood before the princess, the sack man whispered a prayer:
"If Pov Rochana Devi and I were truly destined to be together from past lives, may she see my true form hidden beneath this sack."
At that moment, the princess suddenly saw, in her heart, the man beneath the sack: a radiant, noble figure with golden skin and divine beauty. Without hesitation, she walked to him and placed the garland of flowers on his hand.
The crowd was shocked—officials, nobles, and citizens gasped and even mocked her. Yet Pov Rochana said nothing, tears falling from her eyes. Because of her shame, the king had the couple exiled to live outside the city.
Each night, the Sack Man removed his covering and became his true form—a beautiful prince—and stayed with his wife. But by morning, he returned to wearing the sack.
Tired of the cruel mockery from her parents and sisters, Pov Rochana decided to end it. One night, after her husband fell asleep, she burned the sack—but to her surprise, it did not burn. When he awoke and saw what she had done, he became distant and never removed the sack again, not by day or night.
The king, disgusted with his daughter's strange husband, sought ways to kill him, hoping to give her a more "worthy" man. He ordered all of his royal sons-in-law to hunt wild animals, declaring that failure meant death.
Each prince had armies—except the Sack Man, who had none. Pov Rochana tearfully warned him. Out of compassion, he removed his sack and flew deep into the forest, using magic to summon noble beasts. He returned with the finest catch.
The other princes returned with little or with rotting animals, and some even cut off parts of their own bodies to fake success. The king was furious at their failure.
Next, the king ordered a fishing competition. Again, the sack man caught fresh, beautiful fish, while the others brought back dead, decayed ones.
Ashamed, the king demanded that each princess prepare their husband to present in full glory. Pov Rochana tried to beg her husband to dress up, but he refused and remained in his sack.
She begged her father for mercy, but the king, now enraged, planned to kill them both.
Weakened by grief, Pov Rochana refused food for seven days and nights. On the seventh day, she fainted and whispered her final words:
"Husband, I'm leaving now…" — and died.
Heaven trembled. Indra, the king of gods, opened his divine eye, saw all that had happened, and devised a plan to heal the broken hearts.
He ordered Vishnu to disguise himself as a foreign king and challenge King Samal to a royal ball game, with the fate of the kingdom at stake.
Panicked, King Samal threatened his sons-in-law: "Win, or die."
One by one, the princes failed. Indra's powers were too great.
Queen Samal Devi, seeing her husband losing hope, reminded him of Pov Rochana's husband, the once-exiled Sack Man. At her urging, he summoned him to play.
When she arrived at their home, she found Pov Rochana had passed away. She tearfully told the sack man of the challenge.
Moved by his wife's loyalty and her death, he agreed, took off his sack, and entered the game in his true, radiant form.
The gods cheered as he won the game with honor. Impressed, King Samal declared him worthy, named him his royal heir, and crowned Pov Rochana as chief queen, placing her above all her sisters.
Meanwhile, in the city of Solas, another king named King Yasa Vimalaraj had a dream: Indra, disguised as a demon, scolded him for foolishly abandoning Chanda Devi, his former queen, due to rumors from the jealous Chantha and Grandma Smetha.
The demon warned:
"If you don't retrieve Chanda Devi in seven days, your head will split into seven!"
The next day, the king sent a grand procession to beg Chanda Devi to return. At first, she refused. But after Chantha and Smetha were executed for betrayal, Chanda agreed—but first, she had to prove her purity.
She walked through fire.
Miraculously, the flames became lotus flowers, and her body shone with divine light. The king fell in love with her again.
Later, disguised as commoners, they traveled to meet the Sack Man, now king in the city of Samal. To reach him, Chanda disguised herself as a cook and prepared a meal shaped like a story—about a lost son.
The Sack Man recognized her—his mother—and died from joy. His wife Pov Rochana, overwhelmed with sorrow, also died.
Indra descended once more and resurrected all three: the Sack Man, Pov Rochana, and Chanda Devi.
When the Sack Man regained consciousness, Chanda brought him to see his father, King Yasa Vimalaraj. The truth was revealed.
He was crowned as the new king.
He married Chanthi, the daughter of Indra, who was reborn as Suvannadevi, his second queen.
Both wives later gave birth: Pov Rochana bore a beautiful son; Suvannadevi bore a daughter as graceful as an angel.
In time, he gave the throne to his children—his son ruling Samal, and his daughter ruling Solas.
He crowned Pov Rochana as chief queen of queens.
He ruled wisely for 110 years before passing away peacefully and ascending to Tushita Heaven to be reunited with his loved ones.
Rebirths (Jataka Reference):
Chantha was reborn as Devadatta's wife (a future villainess).
Smetha was reborn as a female yaksha.
King Samal was reborn as Ananda.
King Yasa Vimalaraj as Suddhodana (Buddha's father).
Chanda Devi as Queen Maya (Buddha's mother).
Pov Rochana as Queen Pimpā.
Suvannadevi as Queen Sujātā.
Sack Man (Khyoung Sankha) as Prince Siddhartha, the future Buddha.
Main Theme:
This story illustrates the past life of the Bodhisattva as Khyoung Sankha, focusing on love, sacrifice, loyalty, rebirth, and the eventual enlightenment of all.
If you'd like, I can format this into a storybook, script, or summary version!