Class A - How often should it be driven?

I don't think you need stabilizer if you are starting your engine every month or two, even if it just sits still, run the engine and let the fluids move. Also run the generator every month for a good 30 minutes under heavy load (like a/c). Since you are in Florida, you will want to cover your tires as the heat and sun will dry out the sidewalls if exposed to sun directly. My Class C sat for months from November until April without being moved and suffered no ill effects. When you do move it, give the throttle a good push to help blow out the carbon and clean the valves.