File this in the "you never know what life will toss at you" bin... You may recall that I spent the summer of 2020 rebuilding a 2002 Lance with extensive water damage (link to the project is in my ...
My wife and I are both arthritis sufferers as well, so I know where you're coming from.
If you'd consider a Class A, the Thor Axis and Vegas are have low step-in heights (although I'm not a big fan of Thor products). Then there's no in-and-out of a tall truck either. Ideally, a pristine Winnebago Rialto is the easiest access, but finding one would be the tough part.