Buying sight unseen makes me nauseous...literally. I've been burned before as well and it sucks. I would do as others here advised. Get the most you can from the claim, fix up the game the best you can without dropping too much more into it, and then list it detailing the flaws. You will take a loss (consider it a the cost of an education) but, once you have that IMVE in your home, you'll quickly get over it. Looking at your current game is going to be a constant reminder that you took it in the rear pipe.