Well with a tank like that you may need two thermostats or a thermostat with two channels. Honestly, I don't think the tank is the best idea. It might look nice but tubs are so much easier. With the heat lamps you will have trouble keeping the humidity in. If you have a tub with an appropriate sized UTH or Flexwatt you would really only need one thermostat since the tub would hold enough heat the keep the cool side ambient temp up. The tank could work but it will be much more difficult to get the temps and humidity correct and will cost significantly more.