B+ motorhomes

I own a 1975 GMC and it has the stuff you are looking for, but you just can't buy a new one, you have to restore and old one, or buy one restored. GMCs have, swivel seats, drive like a (big) car, and importantly ride like a car, have about 15 different interior configurations so almost everyone can find what they want. Mine is all fixed up and I constantly get complete strangers complimenting me on how good it looks. Back when this motor home was made GM had huge amounts of money and could do design things that no motor home designer today can do. Things like curved sides instead of slab ones. Aluminum and fiberglass monoque construction. They are all old now, but not very expensive to buy. You have to be willing to tinker though or you will be frustrated. Plus it is kind of a cult ownership vehicle. What that means is that many owners are in clubs and if you break down in oh-my-gosh nowhere someone who also owns a GMC will be fairly close by and will help you.