I strongly recommend contacting a good show breeder. A breeder that is well-regarded in the industry will be performing a number of health tests, proving their stock in competition, etc. Of course the same can be said about working lines but I think bench bred dogs are often a bit milder for the average pet owner.
The majority of dogs that come out of show lines are “pet quality” either because their size is slightly off, they are structural off, the color is off, a testicle doesn’t descend, etc. So you end up with a beautiful, good-minded dog, that was just not quite right for the ring.
Dennis Sieracki is an AKC breeder of merit out in Washington. He would be a great resource for helping your friend find a local reputable breeder. Monimar English Setters in Wisconsin also appears very reputable and may be able to recommend someone in your area.
I don’t know anything about the individual breeders on this list but this may be another good starting place:
http://www.esaa.com/BreedInfo/BreederList.html
Melissa D. Newman, English Setters, Setter Ridge Kennel, Clinton, Washington. Her name came up as a 2012 top 7 finalist for AKC Breeder of the Year for the Sporting Group.