After a KOA experience much like a scene from Lucy's and Desi's movie "The Long Long Trailer", (our camp site sloped both down and to the side) I decided to give up on boards. I adapted an automotive port-o-liner and a set of tent trailer jacks into a hydraulic leveling system for Honeysuckle Rose, my 1935 Chevy Skoolie.
Jack
The valves allow me to set the height of each jack independent of the others.
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I substituted the hydraulic rams for the original jacking system in the jacks.
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This pic is of a trial fit. The flex lines now link up with steel tubing from the pump to each jack and no longer show.
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