Hard to say exactly 'cause these things have a way of drawing themselves out longer than one would initially anticipate, but I have a manufacturing partner all lined up for it and just need to earmark some capital for it, then we'll be off to the races. Black Richlite would be the most economical choice, but I'm thinking a light brown would be nice--the black locust scales looked nicer with it than I had anticipated.
please, if possible could you do the black locust without any coating or resin or anything? It's a fairly tough and heavy wood all on it's own, and personally, I'd only use a bit of pure tung oil on it. No need for any sort of epoxy or resin or some other stabilizer imho