Thanks for the rapid response! I think I will try the strip method also, but the C1 I envisioned and have sketched out is about 8 feet long and 29" wide at the cockpit. The design is more along the lines of a topo rather short and stubby. This would eliminate the long thin drooping ends ( I think).

What about using the insulation board foam to build a plug. Cutting out the cockpit and then glassing it in. This would isolate the foam from water damage.

Thanks again,

Reuben Watkins