What scout said is true to a point. What you need to brew is wheat beers! They use warm fermenting yeasts are supposed to be estery in way.
There are yeasts out there that have a temperance for higher heat w/o making the dreaded fusel alcohols that cause headaches instead of buzzes.
Go to the link I attached or google Safale or Safbrew. You can find a higher temp yeast that will work at ~75.
Buy another rubbermaid kegger tub and put the 2ndary in it, fill it half full of water, drap a few towels over the top, but let the bottoms soak in water. The whole towels have to be wet. Then and rig a fan to blow on it you can get about a 10 degree drop if the room air is dry. This is the same premise of a swamp cooler. It works. I verified this with water in a glass carboy using a internal temp probe and a infrared heat gun.