I have painted panels with this air compressor,
It is only a three HP compressor.
It dumps into this tank.
And I use this gun.
The compressor has a 20 gallon tank, and so is the red tank. What I do is run the second tank at about 40 psi, using the regulator on the compressor.
What happens is when the air expands, going through the regulator, it cools some, and its volume increases. Remember, your HVLP gun does not need high presssure. While painting, my compressor does cycle on, and off.
I live in Oregon. We do not have the humidity you have in Florida. My tanks are bigger.
You might try try setting up a system similar to mine, and see what happens if you just spray air, without paint in your gun. Spend a half hour, just spraying air, and see if you get any water condensing at your gun.
However, that is no guarantee you will not get water spots. The solvent in the paint evaporating just after it leaves the gun tip does cool the air some more, and condensation could happen then.