First choice, contact the manufacturer. They could sell you a new unit or maybe even have a re-build kit for the damaged one.
Second choice, there is a list of RV salvage yards posted here in the General Area here. Start making calls and if you find any that are no longer in business, let the Admin here know so the name(s) can be removed.
Third choice, fabricate another method of carry your spare, like maybe a bumper mount for the rear of the 5ver.
Last ditch effort, secure it to the roof of the 5ver with tie down straps.
Good luck, Have a good one,
Hey! How's that "HOPE & CHANGE" working out for you?
January 20, 2013 - The end of an ERROR!