Need Help with Vinyl Roof Disease on '72 Scamp

Honestly, I would not recommend option 3 to anyone. That was just a crazy thing to do with people (me) who didn't have any sense having never done a car project before. Interestingly, that donor roof that I used was already cut off of a car. I bought it off of a guy in NC. I asked him why he would even cut up a car like that. He said the rest of the car was a complete wreck. I just can't even imagine given how perfect all that donor material I had was.
He just didn't want you to know his hot rod project started with a perfect body! I bet y'all had fun tho. No better way to kill time than by (basically) creating your own vehicle!