I own the same boat. It is a Nautical 56. I moved mine from Oriental, NC to the Severn River Marina in Mobjack Bay in the SW end of the Chesapeake.
The boat has a 5'6" draft and weighs 52,000 lbs.
My boats name is Camelot (was Hard Times II). The survey photos are at
http://web.mac.com/lorn.
Lorn H Olsen