I have two girls. They are awesome dogs.
However, I'm sorry but I have to speak up on this... I dearly hope you aren't paying ANY money for this dog and the breeding was not done on purpose... It would be highly unethical to support purposeful backyard breeding (even if they are giving some b.s. line of whoopsies) of this working mix for several reasons.
Namely among them, most people can't give these dogs what they need and therefore most of them end up at the shelter or in rescue at least once in their lives. It tends to come in waves, but I see a huge number of these dogs in the shelter/rescue at young adult age, as well as some pups and some old dogs. One boy last summer was in and out no less than three times in less than six months. Not even kidding... that poor dog.
Yeah I'm the freak who keeps tabs on whats going through the local shelters. Hell I ended up with my second because my best friend's mother though Lily was so awesome that she just had to go get her own, despite my multiple disclaimers on what goes into giving fullfilling her basic needs physically and mentally.
There's a very nice 7 yr old (could be younger... my 5.5yr old is just as grey already) in private foster over in OR in right now. Someone dumped him and he was starving just waiting there for them to come back. He is so lucky he was picked up by such an awesome foster mom. Now he's hiking and raw fed, etc.
Actually thats exactly what happened to Lily at about a year old. I love her dearly and she is perfect for me, but I am under no illusions... the average pet home wouldn't have been able to fullfill her physical and mental needs. Not anywhere close. She would happily work literally all day long and be ready for more.
And all Scout's previous owners got her because she's pretty (and was a fracking adorable puppy). They were all very nice people and she's never been abused, however they did a real bang up job inadvertantly creating some really epic issues. Namely among them her seperation and isolation anxiety issues at normal working puppy behaviors being handled wrong and from being rehomed so many times. There are some genetic things at play too, but its amazing what good intentions and lack of experience can do...
Please I beg of you, do not support byb-ing of these dogs. If the pup is free, great go for it!!! But do not encourage people in breeding these dogs for the wrong reasons by giving them money. I don't care if they say its an oops or not... if it was an oops they should suck it up and eat the cost. Too many times thats a convient lie for byb's to sell their pups to people with tender hearts.
These dogs pay a very, very heavy price every day for people's selfish desire to have a pretty dog and zero desire to actually put any effort into owning them. While I'm sure you will be a kick ass home, probably none (and sadly thats not even being pessimistic) of the other pups will be as lucky in actually having a forever home. Probably all of them will be rehomed multiple times, to say nothing of most people's ability to contain a dog that smart and athletic and bred to run all day...