I agree with others that suggest a good quiet generator. I dehumidifier will use tons of electricity just like a air conditioner. You say you have a isolated spot. How close is your nearest neighbor. You may indeed be able to run your generator all night. I have when camping in a secluded spot. But more than likely if you run it during the hot part of the day and into the evening like say 10 pm your rig may be plenty cool enough to sleep through the night. Have you ever heard a very low noise generator run they are very quiet. If you have a secluded spot you could get a heavy gauge extension cord and you would hardly know the generator was running when outside. If inside with AC on you will not even know it is running.
Now of course if you have neighbors that are to close then running a generator all night is not a option. But a quiet one would be fine in my opinion till ten. I am sure some will disagree with me. JMHO
