How do I convert this world to bedrock?

The first pic is the world that I downloaded and the second pic is what happened when I loaded in. I downloaded a folder from a YouTuber (Grazzy) who recreated the entirety of The Legend of Zelda: Breath of the Wild in Minecraft. He made it in Java edition, using plugins like World paint, world edit, and others. I converted it using Chunker and converted it to version 1.20.4 like Grazzy recommended. But when me and my friend loaded in, it was just an empty void. But he also said that he would eventually release a Bedrock port of the world, but I don’t know when that will happen and I’m impatient. Any help is appreciated.