I used a folding bike hitch rack, then added  60" 2" tube topped with a 36" piece of 3" angle iron.

I opted for a swing out for access to the different vehicles it can be used for

if it for just the scamp you could get away with non folding unit and less weight

I used ARB quick release bracket system concept for attaching the shower unit and tent

once mounted there was some play so I add a anti rattle hitch tightener which took out 95%

of the movement in the hitch. Which still left me a couple inches in movement in the 60" tube 

and flex in the folding rack joint. I am now adding to quick release struts from the bumper to the 60" tube.

Having in the receiver makes movable to my off road camp trailer or any other vehicle

total Weight about 75 lbs, which should be ok since I already have most of my weight to the front already

yet as I am now ready for the season a road trip is needed for a good test run

more pictures to follow