Have you looked into Our Fly Babies? I have three pullets and a cockerel that I hatched from eggs they shipped to me.
I tried to reach them and left messages on their website and voicemail. I think later I heard from them but I had enough chickens by then. Thinking back didn't someone have problems getting mixed birds too. There is a thread on here for them, isn't there?
I have not had great success with hatching shipped pene eggs. This was my second attempt and I got 1 out of 7. The first time I only got 1 out of 12 (eggs from MPC). I am more comfortable with simply going with live chicks. If they don't make it they refund or replace. Eggs? MPC offered 1/2 price on next order of eggs.