Okay,
first, as far as I know there are no locks being offered completed. This may have changed since I last played with these wonderful, crazy devices. There are two men who were developing locks for production. Dixon might be able to tell you who they are and whether they have succeeded. My first lock was a bag of parts from the Rifle Shoppe. I do mean a bag of pàrts, not a kit, just rough cast parts. you can make a working lock from their parts but it takes a lot of work. However it would be a place to start.
Once you get the lock working, ie., lighting priming powder with pyrites against the spinning wheel, the gonne is fairly straight forward. But once you put the lock on the gonne it is a new ball game making the lock fire reliably.
Okay, mind is working now. One of the men is Burney Tolino. I last saw him at the gun maker's faire at Dixon's shop. The other man will also likely be at Dixon's for the faire.
I have seen the prototype parts for their locks. I think they will be easier to build than the bag of parts from TRS. Just my humble opinion. But that is a few years back, before I came to México. and I have not heard anything about them going into production.
I will say this. When you fire your first shot you will be amazed at the difference than firing a flinter.
volatpluvia