Not for me =p
All the same though, if you want me to be blunt.
Considering it costs (ATLEAST) £6 to get in and out of London (assuming you don't live within walking distance), you may as well look on eBay.
Serebii.net have a page detailing the event pokemon and what their details should be (Original Trainer, Date Caught, Special Moves etc), there are plenty of sellers on there selling pokemon that they got from events. Albeit they're cloned, but there's no downside for anyone wanting to use them. Often you will be able to 'buy' a poke such as the above Arceus for about £2.00. Pretty fair if you want the event poke, but can't get to the event.
But, then you have the dilemma for paying for a piece of digital data that is probably copied and pasted a hundred times. Your call. Your money,. Your Pokemon lol ^_^