Does anyone know of any good off-road or all-terrain wheelchairs for rocky and sandy soils of the desert that won't get stuck. Would like both a manual chair and a power chair, but all of them seem to be for paraplegics. My husband is disabled quad unable to drive himself so I have to "push" or "propel" him or get custom head gear adaptable to the chair. Help is appreciated..........my first query only got one response.

