Its just a car, not something your have deep emotional feelings for due to history or memories. I say if your bored, sell it off for as much as you can. I guarantee you 2 years from now your not going to say "man I wish I would have sold that to someone thats taking good care of it", but you might ask yourself why you sold it for so little. I say dont wait to give it a good home at a cost of losing money. Sure it would be cool, but whats cool changes everday and it will only be cool to whomever sees it for the first time. After that its just another car. If its easy finished and will increase the amount its worth by more than it will cost in time and material, I say finish it just based on that. If its not going to increase the value at this point because its only going to be worth so much and your already under in it then just sell.