Regardless of your choice of magical study, it is a sin to deny you knowledge based purely on an assumption. As a priest of Oghma it is my duty to ensure the free flow of his Light.
If you are willing to honour the Binder for his blessings, I will be happy to scribe scrolls for any spell you may have use for from the third and lower circles, at a purely nominal charge.
In addition to the usual spells castable by both preachers and arcanists, I can provide the ever-useful Invisibility spell, an area-affecting variant thereof, and a spell to open locks.
You may contact me by means of a note at the Stand, or in person. I'm sure I'll recognise such a striking manner of dress.
-Scribe Matthias Patson, Priest of Oghma.