Just a quick note here; don't discount a medium size (30-34') class A gasser because you think your husband can't work on it as easily. I've owned 2 class Cs, and now a class A; I do all my own maintenance and repairs, and my A is 10x easier to work on than either of my Cs were. It sits high enough that I can actually sit upright underneath, the entire sides of the engine are exposed and accessible from underneath and from the wheelwells, and lifting off the low doghouse cover inside exposes the entire top of the engine, from the front to the back.
Working on the engine of a Ford class C is a nightmare; there is absolutely no easy access to anything, and it's all packed tightly into an extremely narrow space between the seats and under the dash. Opening the hood allows you to "see" the front of the engine (sort of). Opening the doghouse allows you access to only the back half of the engine. Neither actually gives you elbow room to do anything, especially on the front/sides of the engine.
A class A will also give you better/larger tank capacities, better CCCs, and more walk-around room inside since the cab area becomes part of the living area (with a large picture window!). We used and enjoyed our class Cs, for nearly 25 years...but after purchasing a class A two years ago, I would never go back. The increased cargo capacity (both weight and volume), the larger water/waste/fuel tanks, the towing capacity, the living space...for 4-6 people, you will be thankful for all of the "additionals" that a class A provides over a C.