What size Cat

Im looking ot build either a Quattro 14 or 16. I weigh 200 lbs and am looking to go offshore with it between Block Island and Montauk with a lot of ct to ny sound crossings.
Is 14' big enough for this as I will be the only crew. I do not want a cat that isnt "seaworthy" that needs protected waters only.

Thanks Folks!!