I did not rip your world, you didnt look at what was actually in the unity package. The day I uploaded this i had to use the only image off google i could find of that one academy model since my screenshots werent working that day
this is just the FBX and the Textures, i left it as is so everyone was free to do whatever with it! it theoretically could work with udon, but you do need to actually do most of the work world wise yourself. hope this helps!
unity basics, you have to change the shader to a vrchat compatible one, i reccomend researching how to make avatars or talking to a avatar creator before making models