I am so out of touch with who breeds Pionus. I could not begin to tell you. I have no clue on what stores would have them. I was at an Omar's years ago, I think maybe in the east part of Pasadena maybe near the 210 freeway. Don't put money down on a baby until there is one hatched and do not put money down on an fertile egg that has not been hatched. Did you ever inquire at Magnolia Bird Farm? They have two locations, one in Riverside and one in Anaheim, I delt with the store in Riverside. I use to sell some of my Pionus and Amazons to the Riverside location. My sister would sell like 30 some Maximilian Piionus every spring/summer. She too no longer breeds birds.
I bred Pionus, started with them along in 1993 and I ended up with 6 species in which one of the species was the Coral Billed Pionus, started with 1 pair and then got unrelated ones that I was able to pair up with my off springs I produced that I traded with Bob Queen of Queen's Pride Aviary in 2006 then he retired and he passed away a couple of years later due to health reason and then his wife sold sold all the breeder pairs because she moved out of their state.
Then due to my health (breathing) I had to sell all my breeders by 2008. Just prior to having to give up breeding, I had been able to create 5 unrelated pairs of Coral Bills. The gal I sold the 5 pairs to had split them all up. I think there were a couple of other Coral Bill breeders but I think as of this time, they must of fallen off the face of the earth. I had 2-3 pairs of each of the other 5 species of Pionus. I also bred 2 species of Amazon being the Blue Fronted and the Orange Wing.