What Sonic does is They make cross bars out of stainless tubing and hang it at the ends with the same hardware used on bimini tops. Then you just slide a piece of plywood out from under the V birth. 3 Cushions store in the closet next to the head. I was going to have him do one for my 42, but we never sleep in the boat. You could build the thing in a weekend for less than $200.00 plus cushions. best part is when your not using it you can't see the hardware because of the way Sonic shapes the couches. Good luck.