Caesar is looking nice! One of these days he'll start filling out hahaHe's a cute little noodle.
I'd avoid Prehistoric Pets if I were you but that is based on my observations when I used to live by the Fountain Valley store through the late 90s. Just my personal opinion.
Another mass producer you might consider (although others may caution against) is NERD. I know you already contacted BClark and he would be another I would say is okay and makes some nice stuff.
Did you check over on reptileinsider for your BC needs? Lots of locality specific boa hobby breeders on that site.
Good luck in your search!