Tricky D
I would recommend making reservations for any campgrounds that you plan to stay at during March because it is spring break for a lot of schools. I know that the park that we are at will be full in March. Spring Break and then Easter.
Tools? I carry a basic tool set that includes: socket set, both metric and SAE, 1/4", 3/8" and 1/2" drive up to 1 1/4 sockets. 1/2 drive torque wrench, 150 psi, air compressor, pliers (channel lock, vise grip, electricians, gas, wire cutters), a set of combination wrenches-metric and SAE, adjustable wrenches, cable ties, bungie cords, soldering gun, drill & drill bits, hammer (sledge, ball peen, claw, dead blow) electrical tape, various size wire terminals, crimper, Volt/ohm meter, and some other stuff that I probably don't need but have it for the satisfaction of knowing that if I ever do, I've got it. The fact that we are full timers and I do most of my own maintenance dictates what I carry and it isn't necessary for everyone. A lot will depend on you and your technical ability.
Enjoy your trip and have a great time in Florida.
John