[Rev]

Rust repair is difficult and expensive. You might even have to replace the roof using one from a donor car. None of that can be determined without removing the old viinyl covering. What you won't want to do is poor repair and then hide it with new vinyl. Once the roof is repaired properly, you can decide how you want it (paint or new vinyl).

It doesn't sound like the rust is minimal or isolated from your description. I would count on major repairs here and a fair amount of $$$. Sorry for this not good news, but I believe it's true.

Rev