Do stuff on your own. Instead of trying to trade your stuff for BL, why not just sell it, take the cash, and buy a new system? A new system has a warantee that assures you it will work, and will work better than a used one anyway......if a used one dies, you got quite a bit less "pull" for trying to get it fixed or replaced. Also, Feigaos are relatively cheap, so buy the controller first (that's the expensive part) with cash from a vehicle sale, then do odd jobs to come up with the $80 or so you need for the motor.

Right now, you're depending on others to solve your problem, and it's not working. Take the initiative and go for it yourself. :)