I ordered from this retailer, at the time they showed an 'in stock' message (now it says stock "available in a 2-4 working days").

However, there are some other German retailers currently showing stock, who deliver to the UK, such as this example of the 16GB model.

This Austrian company currently has 'low stock' of the 64GB model and delivers to the UK.

Also check these lists:
64GB http://geizhals.at/eu/654041
16GB http://geizhals.at/eu/654017
64GB http://www.idealo.de/preisvergleich/...arz-nokia.html

Obviously, check stock levels before placing your order.