The framing continues in the bathroom. The front bathroom wall is framed using 1.5"x1.5" studs. I should have taken a better picture but the studs are attached to the roof using a metal channel that has been cut to allow for bend, then glued and riveted to the roof. The front wall has been positioned so it will be perfectly fir between two windows and will be a total of 2.5 inches thick when finished. I am going to spray foam below the windows and also fill this wall with spray foam to make it more rigid. The rear bathroom wall will be standard thickness to accommodate plumbing and it is how power lines will run from under to over the window line. it will also house the power lines to the rooftop ACs and PV power.
It was pretty tricky trying to figure out where the walls would end up in an unlevel bus with no factory right angles. To anyone that says looks wonky when I'm done, I'm just going to say "No, you are just viewing it while parked on unlevel ground" or "Na, I just have a low tire. As soon as I fill it up everything will look right" or some excuse like that haha