Yguy is right it depends on the rig for heating and cooling.. Mine is ducted with heat and AC in the garage but I felt the need to add a second AC for the garage which we also use for a livingroom when we get to where we are going. I was able to do that because my rig has 50amp service and the garage was pre wired for AC
Even though your in Florida I wouuld still get a four seasons rig. Are you looking at Fivers or Bumper Pull?
I checked out the 32GS Amped a bumper pull with a fiver floor plan. I was pretty impressed with it...