tub questions

[sgtsnake]

I used to keep my snakes in a glass aquaround and thought I'd go with a tub for a retic hatchling. I know it will last 2 months max but that's all I need til I get her permanent home. I plan on a 60 qt tub with several holes on each side and the back for ventilation (is that enough)? I plan on using just paper towels for substrate. Now here is my question. I have been told I can buy an ultratherm 11x11 uth and not worry about a thermostat to regulate temps. Is that true? How hot do they get? I'm so used to using thermostats.

Is my set up ok...if you have any suggestions please feel free to add

Thanks