Looks like you guys were right. I blocked the door open about 3 inches and in just 5 minutes the temps have already dropped off quite a bit. So all that work I put into sealing and insulating that room to keep the AC in was all for nothin.  So now the question is where to cut an intake hole? Top above the ants and psu's so maybe some of the heat from the psus will escape or under the desk as mentioned to maybe pull in some of the cooler air from the floor? Both seem logical but I'm thinking with that much suction from the fans, putting a hole at the top above the units is just going to draw warm air from the top of the barn inside so probably best to put it under the desk as Jow said...