I just left 3 days with friends in Brunswick. Their daughter lived at home and commuted to Savannah for awhile. If the job is on the opposite side of town from marinas, the commute could be close.
The Brunswick Landing marina is nice with good stuff but are about to raise rates...double check the increase.
We really like Isle of Hope area but not a lot right around the marina except beautiful homes. There is an area just south and across from Thunderbolt that we were going to try this trip, 2 or 3 marinas...might try looking up on Active Captain.
If rustic and rural is OK, how about places like Kilkenny, Half Moon (there right now) or Sunbury?
Or the opposite, Hilton Head?