I stay at a camp in the warm season that has 14 cabins. They had to have the roofs of their cabins shoveled off twice (maybe three times) last winter at a not insignificant cost. Roof shoveling might be an excellent idea.
Maybe one of those little raised platform machines that contractors use for lifting shingles up to the roof would work. If I was only young again I would DO IT. Just wondering.
NB