One breeder from San Diego (Rancho Penasquitos) retired from their day jobs and moved to Texas; Bob & Terry Reed of Illusion Basenjis. Another San Diego breeder (Spring Valley) passed away almost 2 years ago; Doug Joy of Basenjis of Dune. Not all reputable breeders are visible on the BCOA website. Some don't want their kennels named because they do not breed very often. You should contact the breeder liaison via email for more breeders in California and other nearby states.
The local breed club for southern California is The South Coast Basenji Fanciers. They can help you find a local breeder. The quickest way to get in touch with them if through their Facebook page: https://www.facebook.com/SoCalBasenjiFanciers
Northern California also has a breed club that you can contact, BCONC. Their Facebook page is: https://www.facebook.com/norcalbasenjis
She is BAD news..last year she had 5 litters, all of 25 basenji puppies, under a different name, bluebonnet basenji or something like that…stay away...
I am pretty sure she is the one..hope I am wrong though..
as a side not..a reputable, responsible breeder knows all about Fanconi and does not rely on a vet to recommend testing..
But the part that you highlighted about in season bitches is not likely to occur at a dog show. I do not allow other dogs at shows to lick my dogs nor do I allow my dogs to lick other dogs at a show.
I have not seen any study that shows that an in season bitch is at significantly higher risk than any other dog at a dog show. If you are taking reasonable precautions with your dogs while at a show, I don't see that they are any more likely to contract an infection than the other dogs at the show.
Actually, this past year I bred a bitch who came into season early and specifically asked my repro vet about bringing her to show because it would break the major if she did not show. My repro vet said that it was fine as long as I took reasonable precautions like using a crate and not allowing her to explore the grounds with her nose in everything. She whelped a healthy litter of 4.