It's not that simple.
The most important part of this is the food. If you don't feed them properly, it will lead to disease and tumors, low litter counts, and cannibalism.
Even with two snakes, it's impossible to feed off of one breeding pair because it DOES take time to raise litters up to the appropriate size, and then they WILL exceed it.
They STINK to high heaven, so doing it away from living areas is a must.