8 feet? o.O Dont think they get that big maybe a few feet less.
I would go with a 41qt tub with a uth and a tstat. Better heating and holds temps and humidity better.
What he said ^^^^^
A male BP will reach 2 and a half to 3 and a half range and a female will hit 4 easy but there have been females hit 5-6 foot before, but never hear of a 8 foot BP unless it was a Hybrid( BP cross with other Python species.