Thank you all for the warm welcome. I've enjoyed reading the threads on this forum.
I'm working on my plans for a off road version of a warrior style trailer, which will also be used as a longer term emergency/evacuation trailer. My problem is I am 6'3" with wide shoulders. The GF (who does SAR)and I feel a 6'5 to 6'8" wide interior will work for us, with a transverse gaucho bed'
Space will be tight for storage, but I'm sure I can work it out. In one of the rear corners, I plan on a 1/2 to 3/4 walled shower area, that is topped with a shower curtain. The entry "hallway" is planned to have a step-down, which will extend into the shower area, allowing that to be used as part of the shower area. The port-a-potty will reside inside the shower area (not in the entry way) when ready to be used, and be removed when shower time hits. Pull the shower curtain around the shower/entryway and shower away. Plans are to also have the shower hose and water controls set up to be used outside in a curtain type enclosure. It doesn't seem that complected a building project.
The stove will be a

small combination 2 burner propane stove/oven combo that will be for mainly outside use, but hopefully be able to be used inside in foul weather (vent fan) , and will be set up opposite the shower area. With a little luck, a small 3 way refrigerator should fit under it. A cabinet/counter top will go from the stove area, back close to the extended gaucho for storage. The shower side should have cabinets.
With the low gaucho in the couch position, tray tables will be used for eating.
It's fun trying to get things to fit.
Thanks again for the welcome
Stu