short Class B for fulltime solo travel

For what it's worth, Class B and most Class C motor homes are not designed for full-time living. Make sure that it's kept clean, maintained and aired out. And it's not a bad idea to utilize campground toilets for any serious business, to avoid fecal matter from caking up in your holding tank. You can also get algae growth in your water tank, so it should be periodically sanitized with a small amount of bleach.