This is where I will be a little nasty. Bitches generally have 2 heat cycles a year. Unless you plan on having two females alternating litters, breeding one female every cycle is nothing short of backyard breeding and pretty darn close to a puppy mill. And it doesn’t give you any idea of how the pups turn out either.
Your whole ‘creating life’ angle, quite frankly, is scary.
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I have no intention of breeding each heat. This is your issue not mine.
Actually, you indicated that you wanted to have 2 litters per year, that would be breeding every heat cycle. rintense has some good advice for you and you’d do well to pay attention to it. There is a LOT of work that goes into breeding. You want to raise working dogs? No way you can reliably do that with two dogs who haven’t been proven to be working dogs. That means you (or someone you pay to do it) training and working them, and then breeding them. Then there’s screening for the diseases that are prevalent within your breed; genetic testing, OFA testing, CERF certification, CHIC certification. You need to evaluate for structure. It sounds like you’re not very experienced with what correct structure looks like, so it’s finding someone that is and will tell you the truth. A reputable breeder would NEVER sell you a dog that your purpose was to use for breeding if you’re not going to show that dog to successful AKC championship first, so good luck finding an unrelated male and female. Though they don’t necessarily need to be unrelated if you’re doing a line breeding. Reputable breeders will take any puppy back for any reason at any time, are you willing and able to do that? Puppies should be raised using Biosensor (or whatever they’re calling it now). If you’ve got two puppies from a litter older than 10 or so weeks old they need to be separated most of the day so they don’t become too attached to each other. They need to be trained separately. And on and on and on.
Have you had more than one dog of the breed you love? Maybe they’re all not as great as you think they are? Can you duplicate that temperment and look? Is that even part of the breed standard?
I’m not trying to discourage you, but there is a LOT you need to take into consideration and learn.