You can do this with multiple maps, but I would not go that way, for a number of reasons.

I'd make one map, white on black, indicating (in white) where the letters are. I would use that map to run everything. You can use it to run blenders to pick two different anythings - you'd use several to blend (pick between) two different diffuse color, specular color, bump map, etc. And you'd use it directly to indent the surface via displacement.

The real question then is - do you know how to make an effective leather setup and an effective gold setup? If not, then you have bigger problems.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)