Still in Beulah

I've almost got one window in to the passenger's side wall. Cut the hole, trying to fit the window (very cheaply made) into the hole. I'm having to make some changes to get it to fit. I've pulled all of the panels off the walls, exposing the outer skin. I'll be adding insulation there, possibly putting some different panels on . Something other than particle board. Probably re-do the electric.. I need to add the 12V wiring and would like to do a clean, easily-maintainable job of it. Thankfully, Weldon hasn't thrown me off the property yet! :) Thanks, Weldon!