Upper Rear Door
An incredible amount of rot here presumably from the fact that there was no rain gutter above the door. This problem also occurred on both sides around the windows so I added the gutters, like the side windows, there as well and a good amount of Butyl tape.
To extend the rain gutter out far enough at the back door I fashioned and fiber glassed a piece of wood to match the shape of the rain gutter.
I purchased a Garmin Overlander and the compatible wireless camera and placed it just below the rain gutter. It looks like it’s off center but that is because the layout in the rear of the camper is off to one side.