Jean (pips&peeps) sells SQ blue and black Ameraucanas. I just hatched one of each in my bunch along with some buffs, and they are happy and healthy. Jean is a well-respected BYC member and breeder, and she is also a regional director of the Ameraucana Breeders Club.
Check out Lisa Cree too. I don't recall if she ships eggs or not. I'm pretty sure Paul Smith and John Blehm don't and I think they're out of chicks already too.
If you can't find any Blues and would like WBS, check out my website. You can see pics of my birds and eggs. I'm booked up on hatching eggs for now but can add you to the list in case someone cancels.