Simon,
The short answer is that Russ Jr has his son handling the t-shirts. He is a college lad, so hopefully he is more focused on girls than the t-shirt interests of us middle aged men. So its not exactly a full fledged business operation kind of deal. It's an extra step to write out the customs sheet, but no big deal.
I have just sent two shirts to Greg H in the UK. I bought a few new ones from Russ's ebay site like everyone else and had them sent to me. I included the two Greg wanted in the order.
FWIW, the shipping on my end was 24 bucks for the two shirts to the UK, 7-10 day 1st class mail, US Postal.
If there are number of people who want shirts from outside the US, I can do the same thing again in a batch. I don't want any dissapointed RC fans out there.
I have 3 new XL shirts in black on hand.
George