I like the simplicity and openness of your bus. I also like your shower post with all the pictures walking through your instructions. Respectful criticism, you may want to find a way to vent your water heater to reduce moisture, co2 and other undesired bi-products of burning propane.
One of our users here Milkmania did a pretty cool vent for the an ecotemp L5 (same as you I think) outdoor water heater.
You can find more information about it in
this thread here.
I stalked through your reddit profile a bit when you made after that post about the penny table. I liked reading about your security compromises and the transients on your roof as well. Sorry to hear about your window, maybe we can grab a beer in 8 months if we're both in Portland after my bus conversion is done. Best of luck to you for your future adventures!
And stay warm, it's freezing right now!