Honestly, unless you plan on keeping all the offspring it's not worth it to breed a normal. They won't sell, if they do you'll be lucky to get $20-30 bucks for them.
Keep in mind the BP world is extremely over saturated right now. There are almost 15,000 yup FIFTEEN THOUSAND available for sale on just morphmarket right now, and that's only one sales platform.
There is basically no market for normals anymore, and most normal hets or single gene animals will be tough to move as well.
So like I said, unless you're planning on keeping the offspring you probably don't want to breed a normal.