spoke to this guy, said he could supply

http://stores.ebay.com/Street-Bike-Accessory-Warehouse

according to the website they only ship to USA or Canada. Assuming they ship to the UK what's the postage and how much for the import tax and VAT?

you'll have to contact them yourself, but vat is 17.5% and import duty is generally around 9%
I spoke to them a couple of months ago about it.

seat
 

If you want one, i can bring it back with me, when I come home around Sept, youll have to have it sent to my hotel in texas..but ive 3 GSXR vented seat cowls to carry too !