I have a guy wants to trade a car I have up for sale for a 1986 Porsche 944 non turbo car. car is really clean looking, dent on the driver quarter. Nice wheels, needs tires and windshield is cracked. Runs and drives. Driver seat needs to be redone, dash is near perfect. Dont know much about the cars. I know they are the poor mans Porsche, my question is what are they worth? What could I sell it for say in spring time with the quarter fixed, maybe some tires and a windshield? Anything I should look for or ask about? Red with black (I think) interior, moon roof.