Hi,
I was in the same boat. I wanted a smaller number than the hatcheries would ship. I would suggest one of two things. Organize an order for a group or special order at a feed store.
I had a good experience organizing a group order. It was a little work, but I didn't mind. I used BYC and craigslist. If you do it, just be patient with the time to order. I gave a deadline of 3 weeks or so. It ended up being a large order, 45 chicks. Since the shipment was delayed an extra day, some died in transit. If it had not had so many they probably would have froze. The hatchery is reshipping the lost chicks on Monday, plus an extra one we added. They may end up adding a few extras as packing peanuts or just in case chicks. My cost was half of what it would have been at the feed store. It was easy to figure the costs per person with Welp Hatchery since the shipping is included in the listed cost per chick, plus I added an extra cost of $0.50 to each person's total to pay for the marks on any look a like breeds.
(Sorry, its too late to add anything.) How about organizing an order yourself?
Blacksmith's Corner places new orders once they run out of chicks. I was in there last week since I am not far away, and they still had 8 or 9 Barred Rock chicks and 3 Leghorns, about 3 weeks old at the time. That shipment came in on the 26th of January, so they should be getting close to doing another order. They may have gotten more in since last Friday, I don't know. You could ask if they could special order others for you. They special ordered the organic feed for me that I wanted, since they don't normally carry it.
Usually Blacksmith's stocks Easter Eggers, Barred Rock, Leghorn, and Rhode Island Red.
If you are in the South bay area or North OC, Midway City Feed, in Midway City, near Westminster, gets chicks from Redwing Hatchery in Lancaster. Maybe try calling that feed store if Blacksmith's doesn't have what you are looking for. They had chicks when I was in there 3 weeks ago and a little better variety than Blacksmith's.
I agree with Linda, only 4? What if one or more is mis-sexed at the hatchery? The feed store orders only pullets usually, but they are only 90% accurate. It is harder to introduce new chickens than it is to subtract. When a chick is only $3.00 it is an inexpensive investment. We ordered twice what we really want and plan on rehoming any extra ones at the end of 4 months.