Mike, Don't know if this would work for you, or even if it's a good solution BUT!!

Since the parts are so pricey there in the UK what if someone over here bought the parts for you HERE and then shipped them to you? As I said don't have a clue if this is a workable thing, but it might be worth looking into as to the price of the part here in the US and then shipping them to you in the UK.

Roland