I'm looking for plans to convert a mac 25 into a trimaram Would you drop the keel and install a center board or would dagers from the amas be sufficient what wouild make good amas and what lenght would they have to be and what type of hardware would be nessacery to join the amas to main hull. at what this steps would be needed to be taken to strength they riging All help would be very much appreciated Sinserly Jonathan ORTH