I feel the pain. If you're talking about the bit between the lock barrel/tumbler and electric switch at least......
Searched high and low for a working steering lock and got one from Derek at
http://www.wayoutsalvage.com/" onclick="window.open(this.href);return false;
very nice guy, but i still have an arm and a leg missing from the price. postage and customs. Now works at least.
I can do you a new and unused lock with two keys if that's what you're after however? Fits upto July 1970 i believe
David