MAN I MESSED SOMETHING UP WITH THE UVS!!! Tried to load a z buffered filler in, got it drawing, and this is what happened to the UVs. I am still learning about UVs, so I have no idea what to fix in the coordinate system. Runs well on Turbowarp though, and doesn't need sorting!!! Something is wrong with the clipping too...
Same as Dolphin Engine 5.5.3, but @KryptoScratcher for the ARE textured filler shared by @Bambozzle