I specialize in medieval philosophy, not in the making of fonts, so I may not be of much help, but I’d gladly be a tester and contribute any observations I can. My technical experience is limited to two years of using luaTeX with fontspec, and examining (but not editing) fonts in Fontforge on Debian GNU/Linux. I’ve learned a few things from dealing with the peculiarities of other fonts in my embarrassingly large collection, but nothing systematic, so my contributions would be spotty (and probably confined to the summers, when I’m not teaching).
That said, my income depends on surviving the semester, not on perfecting fonts; I would not expect remuneration for anything I managed to contribute, and I agree that the result should remain a commercial product.
This forum is administrated by Andreas Stötzner (Leipzig).