OP - Your post would yield you more benefits, if you would add:
-Any special needs (Want to pull a 20' enclosed trailer with my library of congress competing library - etc.
-I want new
-I want used, but not more then 'x' or 'xx' years old. (Like no more then 4 years old. Or, no more then 10 years old.)
And, I'll add my opinions, which you for sure can ignore, and should, if you say 'Not for me, or us!':
-Go at least 36'
-Pick a budget range, and drop years to buy the best quality coach that you can within this budget range. Quality lasts.
-If used, leave a contingency fund, for 'Oh sh_t', as they happen. And, leave a fund allowance to do what I call 'Baseline catch up maintenance, or 'We've got to change this thing right now!, modifications. (Like, it it needs hoses, belts, tires. batteries, fluid/filter change, etc. Or, it has a green olive (add your color choice here.) Coconut and palm tree, with a dash of tiger, fabric theme on one specific chair/couch. THAT MUST BE CHANGED NOW!).
I also recommend, buying the biggest engine you can in the coach that you like. As they usually provide two key things:
1) Brake HP, via large BIG BLOCK compression. (Jake, 2 or 3 Stage on most mid to higher end coaches. Or, Transmission Retarder in the recommended Foretravel.)
2) Step up, to at least a side radiator coach in the pecking order, as well as a generator on a front slide out. (They'll save you a bundle on maintenance $$ over the years of ownership. And could, allow you to avoid a costly tow, or further delays on a roadside problem. Due to easier access to the bulk of the engine components.
Happy hunting, keep your questions coming
! This gang has lots of knowledge, and are good at sharing it...