Yes I agree and I was considering that aspect. I would have to incorporate a horizontal plywood plate (similar to the stem and stern parts in your frames) fore and aft of the cockpit for the aka's to attach to. The other think I was wondering about is how to design the ama's. My first thought was just a scaled down kayak that I would mirror the top of the boat to the bottom and skin all the way around. I would need to incorporate a corresponding mounting surface for the akas. On the main hull you would also need a verticle stern to attach a rudder to. After sailing the Hobie I am hungry for a little more performance. Also, down on South Padre Island, TX where I've been sailing we carry the parts from a parking lot to the beach through about 100 yards of deep sand. I'm huffing and puffing and in dire need of an adult beverage by the time I get the boat to the water. We have pretty consistant onshore breezes of 10 to 15 knots so it's an ideal location to sail up and down the beach. I would seriously consider modifying one of your designs to the task and would appreciate any suggestions you might have.