Just talked to the printer. He is doing enough white shirts to cover what has already been ordered plus 50% in each size and is then ordering enough black shirts to do 15 L and XL, and 5 M and XXL.
Once the shirts are printed I will post up his email so that you can make your order through him and pay him via PayPal or Money Order.
He says that once he runs out of shirts from this order he will do another batch based on remaining interest.
edit: Black shirts will have white ink.