It's 9 / 18 / 180, if you take Viscaria's Ordinary Mirror.
Viscaria's list of spell's she'd like are posted. Particularly the Efficient System of Composting ReCo(An)(He) 60, which she can't make without the lab text and which would probably cost a fortune (or, I suppose, we could just go for a PeCo(An)(He) 30 version).
In a height of anal retentiveness to match Peregrine's, I have added a 2nd sheet named Arts/Arcane Skills, which compares the wiki-listed stats of the magi versus our book collection. If a magi cannot learn from the summa in stock, then their level is red.
We seem to need better summae on Creo and Magic Theory.