when i had my tc , removed the toilet from the wet bath , sealed the floor and used a portapotty . the 5 gal on board tank was a waste of space .
a lot easier to empty , no need to fill the fresh water tank if used in cold weather .
went from a truck camper to a teardrop last year . easy to pull and at 4' x 9' just the right size for 2 .
add a 10x 10 canopy and you have side and back cover if it rains ..
no ac , no tv , no slideouts . just simple camping .
use a cooler and an old coleman white gas stove to cook.
look at the tearjerkers club for more ideas . they are very helpful .