Hey Khay
There is a way to keep a rack in those temps. I built my rack with melamine and combine backheat /belly heat. I have 4 inch heat tape mataining the cool side with back heat.The hot side is from 12 inch heat tape belly heat. I built my rack with 41 quart sterilite bins that are sideways instead of deep. I also added a door on 3/4 of the rack for security and to keep the heat in. No need to cook yourself for your snakes. Good luck