I would use the regular Zoo-Med under the tank heaters and hook them up to a proportional thermistat like a Helix DBS-1000 or the Herpstat II (could go pro as it has 4 different inputs/outputs). Get the sheet vinyl flooring at Home Depot and just make sure you heavily sanitize it before using it. (We actually dipped and let ours soak for about 15 minutes in a chlorine solution, then Rinsed and soaked in a pure water solution for 10 minutes then rinse and scrubbed, then used one of those reptile disinfectants they sell at pet stores.) Put the vinyl over the UTH and tape the probe down directly on top the vinyl flooring using clear packing tape. (make sure no sticky surfaces are left exposed.) Put some blank news paper print down on top and then your hides and water dishes. Make sure nothing sits directly over the temp probe from the thermostat as it will throw off your readings.

Here is mine, but we swapped out the bark for the blank newspaper print quick when we figured how much of a pain it was to keep the bark sanitary.



Mine isn't too fancy, but the legless kids seem to like it!