The Boykin Spaniel Society will give you some contacts. I have purchased two dogs from Nancy Boykin at Hunters Rest in Tennessee. I have not talked to her for a few years but her website is still online. Make sure that you get a pup with at least hip evals on the parents and is from working stock.
I saw one on an AKC dog show and felt sick to my stomach. I attended the BSS hunt tests a couple of times and met some great people as well as saw some fantastic dogs. You will not regret getting a Boykin.