Chris,
While I don't have a project soon that would require that lock, I do in fact have several projects in mind that would require changes to a Chamber's lock for which I may not be equipped to perform.
If you are looking for business in customizing locks, I suspect you might have some customers like me.
At this point in my gun building experience, I can file away to reduce and change the shape of components, but I cannot build new ones or add more metal to enlarge. You might find a niche market here.
I have in mind some projects that involve changing frizzen spring shape/size or changing the small decorative leaf design that extends from the frizzen spring screw hole (if that makes sense).
And sometimes, metal may need to be added to a cock or the tail of a lock plate. Right now, I cannot, and I suspect some builders, cannot do this.
These might be tasks that you could market.
I appreciate your posting of this lock, I hope it is successful.
Cheers, Norm.