I had the same thing happen to me. My advice is not to repair, just accept the loss and put it on the market for as low as possible. Eventually, the brokers will buy it, but it might take some time (12+ months). If it's for sale, it's not costing you anything.
As I'm not in a current game world, could somebody tell me, the new features of leasing selection (to whom etc), has a feature of airlines to NOT lease to been included? That would be handy (not in this case since they BK'd, but other times).