I was an airbrush artist once. I was never good enough to do lettering. We used a lot of frisket.
Etching nickel silver is a neat idea, but I think a cost/benefit study might indicate that the best course of action is to continue in the do it myself direction. I will probably go for custom decals for the maroon on silver, but I will wait until I see how the simulated stainless looks. Solder holds a polish for quite a long time - lots longer than brass. And I can try that Alclad II, at eight bucks an ounce.