Here's the ladder rack I made for the rear bumper. Stainless steel framework and 2" receiver.
What's not shown is the 2" receiver lock to hold it in place. Also a U-shaped bicycle lock and a couple of small ratchet straps to hold the ladder on the rack. Since installing I've repainted the bumper and the lower part of the receiver section gloss black. My wife was following me on the last trip in her car and said there was no movement or sway while going down the road.
In the future I may make an aluminum diamond plate box that will also fit in the receiver to handle a generator and fuel.