I don't mean to upset you, but what is more important, your need to house them together or their comfort/quality of life?
First off i know plenty of people that keep there snakes together, and its my choice for doing this, secondly, just because they are kept in the same cage doesnt mean that their going to be uncomfortable or have a bad life, if you have a big enough enclosure so that they both have enough room to move I dont see why having two ball pythons together is a bad thing!!!