Nobody asked @franzbassist, but is it a new item bought in an official store or is it a second hand item bought from a private person?
If it's new, the store has to withdraw the VAT that you'll have to pay has one of the incoming taxes, and in the end according to the exchange rate of the day, you'll end up paying almost the same amount as if you were buying it in the U.K.
In case of a second hand item, as others said, get prepared to pay at least 30% of incoming taxes...
In fact, I do the maths another way: I simply add 50% to the bare selling price of the second hand item as the shipping fee, the handling fee and the administrative fee or any other fee will be added to the declared value to calculate the final amount of the VAT.
I've done it the other way round and unless the price of the second hand item is very low, it's not a winning situation at all.