What size snake are you getting? A 106 qt tub is gigantic even for the largest BP. If the snake is an adult I would put it in a sterilite 41 qt tub or an Iris CB70 tub. I would also bring down the hot spot to around 90. As long as the ambient temp is in the mid to upper 70s I think you'll be fine.
The essentials:
Tub
Heat
Thermostat / Rheostat
Substrate
Two hides
Water bowl