Hi April - looks and sounds like a good choice. Thanx for posting info & pics.
We have a similar "privacy room" (the brand name escapes me; think it came from Cabela's but no longer shows on their website) and we love it. Assembly sounds similar, but the flexible frame is not study enough to support the
weight of a
solar shower bag. We took a page from Gina's book and use a Coleman battery-operated hand-held shower with a pot of water heated on the camp stove - works great. Nor does it have a floor, which we consider a plus, as we use the tub all the shower 'stuff' travels in to stand in as we shower. We dispose of the grey water according to the extant rules of our camping spot.
Wishing you nice hot showers, safe journeys and many, many happy memories. Take care, L 'n D