Firstly, through some miracle, the maps works and converts fine in the newest snapshot. I need to conduct a few more tests, but once I can fully get it working in 1.13 (or any version there of) then I'll add that as a new link to the original post along side the current one.
In the mean time, I've been giving the Resource Pack a bit of thought lately. The biggest hurdle is, of course, mobs. My thought process behind the pack is not to fundamentally change how the entire game looks. It's to keep how I always envisioned Biocraft: BIONICLE inside Minecraft.
What that means is that while the majority of the games textures would be left alone, there would be edits to things to make it seem like BIONICLE items naturally in the game, such as items. That being the case, all the mobs have to change. None of the current animals in Minecraft are in BIONICLE at all, and as such they much be converted.
Unfortunately, that's not as easy as it sounds. Which is where I wanted to ask you all for some assistance!
There is a document of mobs I current have laid out. My inquiry is to add suggestions to this topic based off that list as far as mobs to add. The one rule is that they must be Rahi from 2001 - 2003. And no Bohrok or Rahkshi.
You are more than welcome to create a skin/texture if you see fit, just make sure it looks... Minecraft-y. Outside of that, thank you for reading and have a good one!