I checked with AHPC. Bad news, no plans for the 4.3 Tiapan exist. They made it modifying some molds for the 4.9. Unfortunatly, it doesn't seem like they want to be much help.

I'm serious about building a boat, but I'm not going to make a mold. It's going to have to be tortured ply, or something I can "build up". Glass and foam don't scare me, and neither does carbon.

Got a used A class pentax main for the sail, now I need a mast, beams, and rudder system.

So for those that have built your own boats...just how hard is it???