Check Cabezas. They have the quick draw system which I believe has a optional mount for rectangular pontoon tails.
Todd
2011 2275 RCW, Merlot with palm carpet, 150 Mercury Optimax PRO XS, twin 32" elip tubes, sealed lifting strakes, underwater LED's, side lighting LED's, bimini top LED's, Custom interior LED's, Cupholder LED's, dual batteries, raised helm, Faux Teak rear decking, rough water package, fuel water separator, kicker speaker upgrade, 52" ski pylon, rear loungers, Garmin GPS with Blue Chart upgrade and tri-beam tube mount transducer, Front rub rail protectors, Underwater splash shield, SS rubrails, Stainless navigation and docking lights, 8 rod holders - 4 on rear railing and 2 on each Bimini leg