When you say the frame is gone, you just mean the rear frame rails, right? If that's the car in the Pittsburgh area, aren't ALL the G-bodies like that there? You can get new rear rails ($290 kit). I had a friend put them in my car. There really isn't too much to it. I'd buy the car and fix it up. You can get floors, frame rails, carpet, weatherstripping, etc. And if you need any outer sheemetal, well I know of a good source for that too and could help you out if you decide to get it. You can't go much lower in price these days when selling a car, because as scrap a car is worth $200-$500 roughly (they used to give you like $50-$75 in the 1990's).