I have a 1965 El Camino body shell with a perfect floor and firewall, except for a shifter hole. This floor can be used in most A bodies of the time. The exceptions are wagons with windows in the roof, they are longer in the floor section, and Chevelle two and four door coupes and sedans. It will work in a Chevelle station wagon. It should be able to replace the floor all the way back under the back seat where the trunk floor meets the floor pan. I think you could use the whole firewall and the windshield channel by cutting the dash like you do when replacing the windshield channel. I am asking $500 for the whole shell including the quarter panels. Must be picked up in Lakeport, CA. If you are interested, let me know and I will send you pictures.