A shower is doeable, there have been others that have posted that info. <div>You can go as low tech as a pump up 2-3 gal spray bottle, like me,, or high teck like adding in a 12v bilge pump, with a hoola hoop semi mounted on the roof with panels that are attached to the hoola hoop. I would make it semi-permanent, you can stand in an unused plastic tote, or a kids pool, or I was thinking a plastic sled with shallow sides. Remember you use less water this way, as you gotta haul it by yourself etc normally.</div><div>Go find someone with one, ask to measure the inside, say your looking to get one and add in some stuff, when asked just say racks and such, leave out the other details, not lying, just not saying everything..</div>