The bottom line is that it is worth what a buyer will actually pay for it. Whether it is worth more than a restored car is up to the buyer. I don't think there will be enough similar cars that have sold to get any real info. You will just have to try it.

When I was buying and selling Corvettes and collector Chevies, I always operated on this principal.....Don't put a price on it that is less than you would be happy with....but don't price it too much higher than that, if you really want to sell. Give yourself a small amount to bargain with, but not so much that might keep a potential buyer from calling.