I think it would be a slap in the face to all the people that have helped you for free on your car to sell it now that it's complete so that you basically make bank on it, and will be debt free with a house of your own. That's just how I feel about it when people sell their cars almost instantly after they "finish" them, when you know so many people helped them out and were probably only compensated beer/pizza/etc.

Do you see where I'm coming from?