Wife with disabilites, looking for more accesable RV

My wife and I are planning on full timing sometime in the next 10 years; right now she's alright with the toy hauler but it still hurts to climb in. Ours is a 3 level unit (garage floor is lowest point) and, with so many stairs, she will not be able to climb in our out in a few years. Looked at many options, including some class A coaches, but all (that we like) are more than a mortgage payment; were looking for under $100k. The only fiver we like, that would come close to the best accessability, has the front kitchen/rear master floorplan; otherwise, it will be a TT or motorized. Entry height needs to be as low as possible. Not too picky about brand (see lots of Cardinals and Keystone products when we camp) but are picky about details (slam latches on all cargo doors, keypad entry, larger kitchen with residential fridge, multi-slide, port/starboard bed with slide, washer/dryer, etc). Lots of options out there, looking to whittle down the list.

Is a motorized or towable better in our situation?