Unfortunately, I can not find the actual pictures for the cabinets before the paneling was installed, but I did find some pictures of the rear wall in the motor home which should provide you with some knowledge on how I constructed the cabinets as well along with some other photos that may be helpful.
This is a photo of the rear wall after we did the wall paper.
This is a photo of the same wall with the rear shelf framing attached.
Different view of the framing from the above photo.
Photo of the almost finished product
Close up of the corner cabinet from the above photo.
This is the cabinet on the other side of the bed.
Close up view to show you the plywood framing sandwiched between the panel sheets.
Since I can not find the actual photos that I took during the construction of the cabinets I drew this diagram to illustrate I how I constructed them.
Angle strip for attaching the corner trim.
Angle strip with the corner trim slid into it.
This is a photo of the corner trim installed on a cabinet.
I have not found a cabinet builder near me yet that has the tools to build cabinet doors that will match the doors on the other cabinets in the motor home. So, there is currently no doors on the cabinets.