Now I'm going back a few years here, but phoned (direct) the well known Goodridge Company, and had a pair made up. They were very helpful, gave me a price and dispatched quickly. This was all pre emails and stuff, and knew immediately I was speaking to a knowledgeable man who obviously rode a bike!
I fear things may have changed but probably worth a phone call as they supply and have many contacts in the trade. Good luck.