Since this is the Silver Gelatin Emulsion subforum, and the OP topic is the Formulary's baryta, I'll take a chance and weigh in.

Why not make a silver gelatin paper and split-tone it?

And, the glossy baryta coats beautifully (although glossy isn't to my personal taste.) An example is at the bottom of this page.

A lot of people have held that particular print and not believed it isn't commercial. (Actually, I don't consider that a 'plus' in its favor. I think alternative printers want there to be some sign that their art didn't come ready-made out of the box. But, that's another story.)