Good luck with getting reservations for any of those State Parks in Florida. We were just in that area. Could not get any reservations a month out from arrival in the area. I am going to make reservations for next winter/spring for those parks 6 months ahead.
Thanks for the heads up about the flooding in St. Andrews.
The Buccaneer SP in Bay St. Louis is very nice. Didn't stay there this last trip but when in that area again we will stay there. They have a water park for the kids. And the state park is right across street from beach. This is a large park.
Good Luck with your reservations.
Safe Travels
Kim & Ed