Well, yeah, obviously, much like each GM should really write their own equipment/price lists for their worlds. Still, it's nice to at least have an example in support for that.
I've adapted the Enlightened Alchemy rules for my mix-and-match BRP-oid homebrew (used for running a tweaked version of The Enemy Within campaign originally for Warhammer FRP). Seems to work well so far, but we've only used the more basic stuff yet. By far my favourite of the various rules for alchemy I've come across. The only weakness is IIRC there's no guidelines at all for rarity or cost of ingredients.