Need Design Help! Want to build a Trimaran

[I12Sailfast]

I want to build a Trimaran. What I have to work with is 1-G-Cat 5.7 hull(aprox18.6) ,2-prindal 16 hulls, 2- hobie 16 hulls and 2-hobie 14 hulls. I also have a lot of h-16 mast sections for cross bars. They fit nicely into the G-Cat hull.
Will the tall narrow G-Cat hull have enough buoyancy. what would the best hulls for the sides be. Didn't some one have plans for a tri. useing h-16 hulls. how wide would it want to be. What sails would be best. I have the G-cat, prindal 16, hobie 16 or even hobie 14 sails. Any input would be aprerated
Thanks