Here are all of the Mage Guild quests. This package uses Mooncat's version of the advancement quest. I made some cosmetic changes to the code but nothing actually needed.
Travel Together dialog is unfinished. Both escort quests will fail due to both NPCs selecting the wrong response to "Follow me" or "Wait here". Once those dialogs are either moved to their quest or the rest of the responses are assigned to their proper character, this dialog should then work.
Soul of an Ash Ghoul quest doesn't fully work since these creatures are finished. For now just console yourself the ashghoulsoulgem.
Disappearance of Dwarves quest relies on the MQ line being somewhat finished since you need those NPCs to help you. So I haven't test this quest yet.
Duel with Trebonius isn't going happen because I don't know how to move an actor from one location to another (moving him to the arena).
Arrange a meeting won't have the Wisewoman's apprentice appear in the guild hall for the same reason as the duel. It requires a script to move her to the hall.
Fake Soul Gem quest works but Galbedir doesn't leave her desk area. Need to script her movement.
Not a Necromancer doesn't start on its own. Since she doesn't have a normal dialog option of Necromancers, I'm not sure what TES3 dialog causes her to trigger this quest. Just use the console to do a setstage fbmwmgsharnnecro 10 and go open her locked chest for the book.