If the wheel chair folds need one that can fit in compartment big enough to carry it, if no compartment place in bedroom between wall and bed, still needs to be folding type.
Some people have a luggage rack mounted on your rear hitch that can carry it but you would need a cover for it. I have one that folds and fits in my large compartment but I also have 22.5 tires which make compartments large.
Post here in the Disabled Forum
maybe they have some better answers for you.
Link found here in Handicap thread.