Making my own coolerbator and just had a couple of questions. I am figuring on using a 28qt cooler with 2 60w candelabra bulbs, 2 computer fans, and likely a tray with a small tube for humidity control (all of which are just parts I have laying around). My questions, since it is a rather deep cooler i was thinking of putting the fans, tray, and lights on bottom and then making a screen platform above to try and give a larger overall space for eggs. As long as the thermostat was at egg level, would this pose any problems? Also what sort of overall size would be best for "vents" I was thinking of putting two holes at each end of the lid roughly 1/2" in size. Would that be enough? Thanks for any help.