I recently had a Mission tonearm re-wired (with gold wire and new connectors) by Vantage audio in the UK. Their website is ~ www.vantageaudio.com ~ for contact details. Hope this is of help?
I rewired my own Rega arm. If you can do same you can get Cardas tonearm wire at Welborne Labs - phone 303/470-6585 or on line - www.welbornelabs.com. Different colors at $1.50 per foot. E-mail me at [email protected]