Yes, some k's had AC and workd ok of kept clean. Would suggest a BYCOOl unit if still available - it is an evaporative cooling unit that will make life bearable..... search the "yards" for a good used one.
ROCK, I believe that Abilene Machine lists the Bycool units in their catalog. In the neighborhood of $400-500. You could check out their web site at www.abilenemachine.com.