I have a customer who is looking at 2006 - 2014 Hatteras 80 Enclosed Bridge Motor Yachts and we are trying to find the height to the top of the hardtop? I see Hatteras lists 21' for the hardtop open bridge models but nothing for the enclosed, the enclosed looks to be a bit higher than the standard model. If the same height we can easily have the mast hinged. Mainly we are looking to see if we can do the Erie/Oswego route or have to go around the horn to be in the Great Lakes each season where the boat would spend its summers. Does anyone here have first hand knowledge? I have called Hatteras but their service guy who would know the answer to this is out for the next week.