wow with that truck you can move up to a big trailer,,,say a scamp
16 or even 19 5th wheeler.
the 5er will give you a toilet shower, a fulltime bed and a dinette that you can make into a bed for guests... and to a lot of us,,,would be near a mansion in size.
look at the scamp
website for some ideas also look at the "egg camper" made in michigan.
then you simple have to decide,,,new? or previously loved?
a lot of folks love finding a great older camper and redoing it to make it their own. i went with a new one ,,because i already have too many hobbies, and i just want to travel,,, not work on a camper.
in my case , with a 13 scamp
new from the factory just like i wanted it, i felt the cost was low enough so it was a superb value. and these trailers all hold resale value so well i don't think i will lose much if i decide to sell it in a few years,,,which i think would cause a major riff with wifey ,who has decided its her camper and i'm just along to do the cooking and chores.