It is US flagged - not sure if that makes a difference in custom fees though. We're actually departing from St. Lucia, but our last leg will likely be from Saint Martin.
Our plan Rick is to sail overnight, so we'll be there in the morning when they are open for sure. No chute though George - we really haven't added anything that wasn't on the boat with moorings except for a dinghy motor lift - which actually may not arrive in time