I can get a lock out lever for a 2002 Fox Float RL rear shock, just been out for a ride/beer and lo and behold when i got back the lock out lever has been abducted.
A good LBS or eBay? Mind you, they're pricey (which is why yours was probably stolen in the first place).
I considered switching my Bulls' lockout to the left, and the lever alone cost £70. Needless to say, it's still on the right.