Jim,
I see now. You made a set of legs to support the panel while you're working on it. Very clever.
Also, I notice that you put your throttle and mixture below the panel. I was going to do the same thing until Eric and I flew Nate's plane eastward. With enough time to stare at it while flying I thought the ergonomics might be bad. Are you happy with that location? It would sure make it easier to work on the panel if I didn't have to deal with those cables.