update on the accent keys: JTK says it's doable, but we'd have to get more than just those two keys since there are other legends in the mold. I asked about what other keys it would be. It would add what translates into $10 for the set, which might be a little too rich for my blood. I'll update again once they confirm what keys will be in the set.
Also, I confirmed pantones with them: The yellow will be 108C, and the grey will be 418C. The grey was a little hard to gauge, but I think that's about as close as I can get with pantones. If anyone has a pantone book and a dolch set, let me know.