I think you need to think about this. Are you doing this for your convienence, or completely for your snakes?

Snakes don't need to be kept together because they have no social system. Often the stress from constantly being around another animal can weaken their immune system, or more often, cause them to refuse food. They don't become friends, they don't cuddle, and they don't play together.

If one animal gets sick, chances are your going to double that vet bill. The other one will get sick as well.

First and foremost, keep the needs of your snakes before your own wants, and they will thrive in your care.