All those you mentioned will do fine. I'm near the coast, so it gets cold here this time of year. I've had bantams, but prefer standards (LF) because I like large eggs. That's good you're getting Bantams besides the Silkies. I've never had Silkies but have read about the soft spot where the comb...
You probably made a good decision. I've heard good things about Cackle, and one feed store in Sonoma County buys chicks from them. I don't know of any good stock coming out of California but I'm kind of a hermit. I've had Barred Rocks from Belt in Fresno and wasn't impressed. I ordered from...