I have been beating the bushes trying to find an alternative to spending $$$ on the Aussie version of this handy shower tent. Below is a parts list issued by the the innovator. He charges a reasonable fee for his building plan ~$12. Parts for this would be ~$75? The two brackets he mentions welding would be the hiccup to producing this very light weight drop down enclosure using the Plano or some other type of receiver pack.
Product QTY Description
1 Plano Rifle case 1 Case for the shower
2 1" x 3" U channel 1 Left and Right Support arm
3 1" x 1" U channel 1 Rear Support arm
4 Nylon Ripstop 5 Shower Material
5 Aluminum Rod 5 Curtain Weights
6 Nylon Webbing 1 straps for curtain
7 1" flat bar x 3' 1 mounting bracket
8 2" flat bar x 1.5' 1 mounting bracket