http://www.mckeewildthings.com/video/itza.movThe link above is exactly what you're talking about. 25 years old, a bit ghetto, but the idea is sound. A planing hull out of 4mm ply, with modern tech, and real hulls (albeit very low freeboard) might make a boat lighter than an A-class that could be built for a couple of grand and that would be an easier build than the tortured ply narrow hulls. Four feet shorter boat, a shorter/cheaper mast (maybe even pocket luff), all seem interesting.
When I get a chance, I'm linking this on Bateau.com - maybe the designer there would be willing to put out a set of plans. Long shot, but...
Anyway, if you download the freeware for Hullform (design program) I'll send you the design for what I have in mind.
