Tom, I've been thinking of building one of those. I'm getting tired of our too-big inflatable (Zodiac 310). I also like the idea of the sail rig.
I'm just wondering how the Nutshell would fit on my foredeck. Could you snap off a few measurements? LOA, beam fwd, beam max, beam aft. I'm thinking I could rig a bridle arrangement for lifting & inverting.