Shipping Beer to Leeds?

I have corresponded to Zak Avery over the antique Greene King, and he plans to ship it here via slow boat to defray costs. Wise. I can't believe he's willing to part with it at all, so picking up the tab to send it seems to require a gesture of thanks. I plan to send him a bottle of Oregon's finest by way of thanks. Which raises these questions:
  1. How do you cheaply send beer to Leeds, England? I think slow boat is the way to go, but I'm not sure where to go. Post Office? Will they take beer?
  2. Which beer?
Please comment on either question. I am particularly keen to know the first, but the second is interesting just as a matter of inquiry. (I'll probably pull something out of my cellar, which limits the choices.)