Just live in a sub 10% humidity area and you can just use 3 gallons of water a day with 300Ws to get 60 degree cold air with a true evap cooler.

Arizona and Utah chads win. Just stay away from the injuns and brown subhumans and you'll be fine.

That's what hesco barriers, barbed wire and battle rifles with the aid of a thermal spotter are for on your private offgrid homestead.