Some of those models are preserved in the archives at Arcosanti and Cosanti. Unfortunately many of them have been lost to the elements.

There's a lot of interesting work currently being done on bringing those models into virtual reality and even mixed reality.[1] Of course bitrot is always a thing, but hopefully these will last longer!

https://www.youtube.com/watch?v=esysldCzFgs&list=PL-bfFPHb2g...