So I did some messing around and this is where I'm at so far.... I still have a few things to do before I start skinning it but its coming along. I think I might put a layer of 1/8" liteply across the bottom in the front of the tub with 1/8" balsha sheet for the back 2/3 or so. I think that will give it a bit more rigidity since the booms get the brunt of the friction. Weight of the hull as pictured is 1lb .75oz.