If the rust is getting into the door jams,door sills, or pillar its not worth fixing.... Thats why I'm not doing it on mine. Ray saw my car a couple weeks ago and I trust his judgment. Maaco had quoted me close to a grand/slightly over that to fix the rust and that was with me providing the parts, plus having my car at least a week.... Other shops in the area (ones that are real professionals and that I've personally seen them put a car back together that had been severely damaged ) wanted up to 2500 or more.

The best advice I can give is drive it from point A to point B (wheels fall off) or try finding another GP shell that has little to no rust and transferring all your stuff to that shell IE engine,interior and such. Last choice would be save your money and buy something newer...