So the closet door is external, on the back side? I'm trying to figure if I'd have enough room for a ball hitch as well. At this time, I have no proper bumper. The tail lights are in a piece of very thin aluminum plate that hangs down from the bed frame. Sometimes I've imagined a box for the spare (and other emergency supplies) in that space. But the draw bar to hold the ball/receiver would have to be low enough to make a gap big enough for the tire to get through.
The other question is: How big of radius is enough to avoid vortices?
I just added Zip tape on the seams, and between the cab and front edge of the cap. I'll need some kind of back window, and some bug screen on the front window facing the back window of the cab. I'm going to add some reflective insulation (probably just mylar) on the inside too. Cross country to Chicago in two days, and Monday night is supposed to be near freezing where I'll be then.
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