No advice on breeders but tell her to please buy from a breeder who OFA's hips!! Hip dysplasia is rampant in both those breeds. A reputable breeder will OFA the hips and that sure decreases the potential for the disease. (They can OFA elbows, and certify hearts as well as CERF for the eyes, but I'd definitely want the hips). Well worth looking for!
SIL got a beautiful golden from a breeder last year but they are in MI. The bitch is from Australia. Apparently the cancer gene is not as rampant there as it is here and that was important to them. If you are interested ...let me know and I can get the breeders website