I'm offering a pair of Chubb Escorts here with one key and one set of inserts for a buy it now price of $500.00 Canadian. First come, first served. Pictures via my email address as i can't do photo bucket, and email won't clog up the forum..... Chris.
If Chubb sold spare part kits so one could obtain discs for the AVA mechanism, then I might think it reasonable. But I have never heard of it.
Even gathering old dics' from other sources (others escort cuffs and padlocks) would be highly unlikley as you would possible need 5 locks to be sure to get even permutations for any given key.
The alternative and easiest method is to fit ANY key and grind off the excess of the disc'. Not a ethical or professional locmithing method. The security would definately by compromised and I would hate to ever think , 'What if a cuff like that got back into the system?"
Ian