Big thanks to those who gave advice regarding the shirt. 2XL, a size up for me, was indeed ideal, although not a loose fit.
What was not ideal?
Twenty quid for international shipping, plus another 18 quid to let the shirt into the EU. Bought a Newcastle top, a Scotland T-shirt for the missus, a Scotland hoodie and paid nowhere near the exorbitant postal fees as I did with Greaves (and no customs fees)
Still, I have something new and blue for celebrating our promotion