That is going to come down to how much you need to make to get out from under the deal.
All sorts of marketing gimicks you can use, buy one..... and get one for your friend absolutely free, that sort of thing. You can choose to liquidate the stock, and sell it off in bulk. Of course ebay will get you some bids, maybe not very much money unfortunately!
I would choose the end of season run out gimick, just package some kits together, cut the price and clear it out!