Need Help with Vinyl Roof Disease on '72 Scamp

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!
that's all fun till you get down to all the work you have to do. I have not followed the trend you started, just went through it real fast so please I mean no harm just want the best for you and your project. Iv'e been a body man all my life over 40 years and I'm not bragging there are a lot of better people to give you advice on this forum than me. BUT With all the rust that I see you better look at the frame, remember it is unabody that means not only that I spelled it wrong but the whole car is the frame including the roof so if you try and glue it and bondo it and seal it, then go and put an engine in there that makes good power. Please don't put your wife and kids in the car and try to go 100 mph or what ever. like I said no harm intended you do what you whant