i need help to build a hobie cat 10 feet

hey can some body please can help me with the construccion of the hobie cat 10 feet long ,,, over the last year my pasion is to doing by myself the hobie cat,,, i want to do it rigth so ,,, with material fiberglass or not ,,,
needs to bi 12 or 14 or i can do ,10 feet
might be some free formula 12 plans around if you search google

10' is just too short