No. Please do not put a snake that you haven't quarantined in with your established snake. Best conditions would be a separate room, separate container, and everything being completely separate. You never know what the other snake could pass on to your's. Ball pythons are solitary animals in the wild and only get together to mate. Which might also be a problem if you have a male and a female living together in the same tank. Maybe she can sell you the set up and everything with the snake so you won't have to worry about it.