Have you tried the place in Exeter, its called - Brammer or something, like that, its in Eagle way near Wickes. They had SKF wheel bearings for my YZ in stock - replacing the cr4p chinese ones that wore out in no time.
The chinese wheel bearings are £3-£5 each and are rubbish, I have an unused new one that has play in it. £10 for a genuine SKF bearing doesnt seem too bad to me. Its what I paid. They were sealed and were genuinely packed with grease too.