I, like so many others, have considered trying my hand at breeding. But, I'm literally YEARS away from ready. I've got 5+, probably 6 years of experience keeping snakes and am NOWHERE near ready.
There is a LOT more that goes into breeding than just acquiring a few snakes, pairing them and ending up with adorable baby snakes.
Some things to consider:
1) it seems you have a local store lined up, but...what if that falls through? Then are you prepared to keep the babies? Do you have a backup plan?
2) are you prepared to make difficult decisions regarding when to cull an animal? Are you qualified to make these decisions? What defects will prevent an animal from being able to live a healthy life? Will you be able to physically go through with the act of culling an animal?
3) do you have the time, financial resources, knowledge, physical space, etc...to properly care for the breeding animals as well as any and all babies that are produced?
I'm positive I'm not listing everything you need to consider, just giving you a few thoughts...
I'm not trying to discourage you, just trying to help you see the big picture. As I said, I've got some years under my belt and had to ask myself these questions. For now, and the foreseeable future, the answer is NO. So for now, I'm making the responsible decision to not venture into breeding any time soon.