Dirty Herd, Screen-Printers By Royale Appointment
first off, dirty herd, they are in birmingham, they can handle a2 (i got confused) and do great work, I have one of their a2's...
Pandy Cane Clothing — Pandy Cane & Eat Sleep Attack Colab Shirt!!!!
and its amazing, but that is partially the design.
Monster Screen Prints, Nottingham
second off, monster in nottingham, also have stuff they have printed, not got a link, but I can safely say, dam good work. I'm not sure what size they print up to, haven't looked at their site in a while.
MySpace - My-T-Print Shop - 29 - Male - UK - myspace.com/mytprintshopuk
third off, based up the road from me, but also very good.
big thing with shirts is what stock to printer holds, if they have loads of blanks by various brands, plenty of arguement over which brand available all over the net, then short runs with several sizes is possilbe. Once again something to take up with the printer.
Monster would be my choice personally.
If you post a mocked image on the sample I posted, then between me and Ken we could probably tell you a fair bit more.