One engine - Two props - Gears to run em - Drag created - Loss of goods if grounding happens, props, shafts, struts, rudders - - > OMG - - > I concur with Don i.e. Moonstruck post 34!
And I therefore feel it is good for me to repeat my post 18.......
Good Golly Molly!! - IMVHO!!
Unless you simply like to spend money and/or work REAL hard for hundreds of hours: Just locate a real good condition pleasure trawler/cruiser and do what these play-boat craft were meant to be for - i.e. "Pleasure Boating, Cruising, Hooking, Gunkholing, Swimming, Relaxing, Partying... etc!"