Thanks, but I bit the bullet earlier and ordered them online...
Meant to update the post, but hadn't got round to it yet
Let me know what you've got anyway, as I could always delete these from the order, as it won't be here until next week :-(
Shim needs to be 47mm long, and I couldn't find one, so I went with a 40mm shim and 7mm's worth of 1 inch spacers to sit below it, which I thought may be a better bet
New to all this 'ahead' steering I'm afraid!