Suggest you don't shop for a particular brand just yet but go and drive several class A's to compare the ride (since your goal is to get a better ride). Drive some gas rigs on the Ford F-53 chassis then drive a couple of diesel pushers. Most DP's with air suspension will ride much better than the best gas chassis. For your stated budget, you should be able to find a good, clean, well maintained used DP in the 36'- 40' range if you are willing to be patient and shop carefully. As noted, $80K is likely not going to get you into any new coach other than an entry level gas rig.
Take your time and drive some coaches.
