how in the heck to pick a used class A

Whatever you liked about your old one look for in the new one. Whatever you did not like about your old one make sure the new one corrects. Make a "must have" and a "nice to have" list. The lists will help simplify the looking. Don't get hung up on colors an cosmetic stuff. Buying used you must focus on the really important items and take what you can get cosmetically.

We just went thru the process and our present rv fixes what we did not like about the old one, but some small things we would have done differently if buying new. We are now in the process of changing those items to suit us.