That's a TOUGH decision. By getting her you'll feel like you're helping her, but you're really not helping the situation by supporting a BYB. I guess you have to think of it with the same concept as the pet stores....by buying from them you're just supporting puppy mills. I know it hurts, but I would walk far away and find yourself a GOOD breeder. And if you don't feel the dogs were in good or ideal conditions, call your local humane society or aspca and have them check her out. THAT would be doing that little girl a favor.
I hope this helps you some and good luck!