I just had a survey here in Baltimore on a 56 Hatteras by Hartoft & Associates out of Annapolis, after a lot of asking around of a variety of sources. Both Robert Noyce and Dave Manning, also out of Annapolis, came up a lot in my search. Gale Browning of Hartoft did mine.
I would highly recommend Tom Hug of MR Power as an engine surveyor. I can supply phone #'s if interested.