In the fall of 1973, I needed to upgrade the sheet metal on a '69 Chevelle late model stock car, both for cosmetics and because the rules we ran under required stock sheet metal within the last 5 model years. (We just used the outer skin).
I located, and bought, a '72 Chevelle body shell and frame. The car had taken a front end hit and the fenders, hood, engine, and transmission were gone. Which was OK 'cause all I wanted was the body shell. Fenders and hood were easy to find. The car did still have nice white vinyl bucket front seats and matching rear seat in it.
After I picked the car up with a trailer, I stopped to gas up my pickup. Before I left the station, I sold the seats out of the car for more than I'd paid for the car.