Just to clarify, I work at a zoo. I'm not a private breeder.

The zoo has rules as to where reptiles can be kept, and those places are all climate controlled between 70-75*. We are also not allowed to remove animals from zoo property. There are 3 other people working on ideas with me, and the best idea we have is to try to modify a cooler or maybe buy an Exo Terra incubator that also cools (trying to contact the company with a few questions first). We are also only looking at brumating from mid-November to mid-February.