I didn't feel it nesessary to attach the panel to the hull. I used a 3/4" piece of marine plywood, mounted it by #10 - 1-3/4" long sheet metal screws thru the storage shelf (the unit with the plexiglass sliding doors). On the other end I built a side panel that followed the curve of the inside of the hull and then used a couple of teak mounting blocks and #10 - 1-1/2" long screws. The top of the electrical panel was made out of 1/2" marine plywood. I built the top panel also following the curve of the hull. After many, many hours of fitting the panel parts to the top of the counter I cut out the holes for the Blue Sea Systems AC/DC panels, VHF radio, Analog gauges, and Raytheon 530C GPS. Then after the final fit was perfect I covered the outer plywood surfaces with 1/16" teak veneer. The top shelf was covered with Wilson Art Formica teak veneer. This process took me approx. 200 hours. I have removed the electrical panel a few times by removing all mounting screws and tipping the panel forward and laying the panel on top of the ice box/counter top. Would I do it again? YES! I found this installation much easier than than my Air conditioner installation.