There's one on GunBroker bidding at $25 right now or buy-it-now for $75.
"Here is an Unused CVA Flintlock, LOCK. It is new/old stock. It has a fly for double triggers and a screw for sear adjustment. It measures 1 inch by 5 inches. This lock can take 1 or 2 screws to hold it in place. It will fit on a stock that has one lock bolt, or two. Note: the frizzen is hardened and ready to use, it is in the white. These locks have an anti rust agent on them, so they might seem a little sticky."