To get around this, ebay lets you put in alternative addresses. If you have a mate in the uk, use his/her address (with permission!) and make it the 'primary' mailing address. Arrange to get the person to post it onto you or pick it up when visiting.
Just make sure to put your primary address back to Irl when you go bidding on other things.
Alternatively, contact the seller well ahead of end and they may change the postage settings if you ask nicely.
Be warned, I had a Q kits 'A' and it was as rough as a badger's ar*e.