Welcome to the Forum!!!
DW and I have been to Savannah, Georgia without the Monty during an across the U.S. driving tour and spent some time at Tybee Island (we wish we could live there until we realized about the hurricanes) and it was all wonderful during that time. I even spent a little time in the ocean. We also went across the river to Fort Pulaski, complete with moat and alligators! Alligators! really? Being from California, that was a strange sight to see in north Georgia, but why not. And you get to go there once a year? Nice.
Sounds like you're gonna have a full rig. The kids are at the age to enjoy the RV experience. They should be able to help you back that thing up and set it up in no time.
Congratulations!