http://www.fastroadcars.co.uk/shop/index.php?act=viewProd&productId=199
I got one from this crowd, although I haven't fitted it as yet. I too will go to Mike Dale aka Black VR to have it installed and tuned. He's up at Holden Hill.
The exchange rate is good at the moment and take the UK VAT (GST) of 17.5% off the list price and you are down closer to the 200 pound mark, but you'll need to add postage aswell.