I'm looking to buy a 70 Chevelle, and the guy that built it is a friend on mine of at work. He is going to Saudi Arabia to fly for Aramco, and doesn't want to pay storage for 5 years while he's over there. Because I had shown some interest in the car as he was building it, He asked me if I wanted to buy it. He went through an extensive list of problems he knew the car had, which most of them are small items. The one area that bothers me is in the trunk area floor, after driving the car for a period of time, there is rust dust on the floor. He said it was coming from the bottom side of the package tray (the area behind the rear seat back and the bottom of the back glass). My question to you is How bad is this? It is a Hot Rod and not a numbers matching car.