5th wheelers size and frequent relocation/campsite fit size?

I've towed a 35 and now a 38 footer for 65,000 miles or so. Latest one hits the scales at 20k.

I limit myself to campsites without low trees and switch back turns far more often than the parks do.
I think a 32-33 footer is perfect. But they don't make really high end ones that small that I could find used. I don't mind the weight until you leave the road, then it cuts in bad.