*disclaimer, I know very little about BCs and even less about breeders of them.
But, I have heard Jawanna's name mentioned as a reputable one, and nothing on their website gives me cause for concern. If I was looking in the area, I'd definitely contact them and try to visit.
I have a question for BC people....the only thing that stood out on their website (not badly) is the look of their dogs. They look....weird? I don't know how to word it. One of the dog has entirely prick ears, they seem to own every color imaginable (but mostly all their past pups are black and white), and TBH some of them imports I wouldn't even recognize as pure BC. Is this typical in the breed? And why are all their dogs crazy colors when the sold pups mostly aren't? Do they just keep/seek out unusual colors for themselves?