First of all, if I were making recommendations for a boat for living aboard and coastal cruising in Florida, Bahamas, Intracoastal, etc, the Island Packet 350 would be somewhere below the bottom of my list of recommendations BUT that said, there is no way that I would put an in-mast
furler on one. In mast
furling shortens the life of the sail, has dubious reliability, powers up the sail in a heavy air, just when you don''t need additional heeling and on a performance challenged boat like the IP, really hurts performance. I would probably go with a fully battened mainsail or to make life easier and help the sail last longer, a mainsail with only the upper two battens being full length.
Jeff