It'll take a while to get an exact price since it's quite a lot of work to communicate with BN-Sports, but from past experience I'd say you'd be looking at at least £2500, if that's a figure you're happy with I'll go ahead and get an exact price.
Ok just did some price comparing on the Japanese websites and a bit of calculating and it looks like it'll be more like £3700.... I'll get an exact quote and get back to you.