UK based you have Mike at MJP - Call to check availability. Fourways Engineering stock various items so you can also give them a call.
I frequently make orders from Zcardepot myself. They've been very helpful over the past couple of years and usually give 10% discount if asked for being a club member.
More recently rock auto has been very handy, the website is a bit awkward to use however the prices are very hard to beat!