The process of scheduling your PCD starts with your CA requesting it. He should be able to send a request now that you have a production date scheduled. The PCD will send your CA an email with the first available delivery date that is possible given your production schedule and the delivery schedule at the PC. It is possible for more than one 1m to be delivered on any given day.
Once you have accepted the date given to you by the PC, you will receive an email from the PC with information about the process. It will instruct you to wait to purchase airfare until 3 weeks before your PCD date, because up until that time your date could be delayed due to transport, VPC, etc.