Hi Pete, I hope you got a deposit. If the deposit covers your costs and shipping it back to him, throw the parts in the car and ship it back. I would not try to sell it for him. That's not what you contracted for and it could tkae forever and will not end well. I am not an expert on 4 door '37 Buicks, but in the state it is in now, I think it would be hard for him to get $1000. Good luck, Dwight