Ooh, I forgot to mention the liquid minerals on Mad Minerals website looks really yummy too!
It probably won't offer a great deal of coverage, but the ingredients are lovely and I don't see anything there that would clog pores or cause breakouts. Unfortunately I tried a couple of MAC foundations and while I finally found a shade to match, it just doesn't hold up as well as MMU. I looked shiny within a couple of hours.
I checked your profile and I think Everyday Minerals may have matches for you. The owner is pretty good at suggesting shades to match MAC foundation from what I hear. Or you might have to do like I do and mix up 3 different shades in varying proportions to come up with the right shade
I'm a medium/light slightly olive neither cool nor warm neutral skintone between MAC NW25 and NW30 to give you an idea.