This is me soloing a 4-5-5. I apologize for the quality, as I had to re-record it.
http://www.twitch.tv/magnus57/c/4798057
The tl;dw is as SCH (and probably other mages), with heals and ballads from trusts, you can run around focusing on killing the trash mobs weak to magic (umbrils and acuexes) while getting a ton of points from Noetic Ascensions. Plus, none of the trash mobs or mimics are really dangerous. There are also some NMs that you can take out, like Behe and the monkey. I recommend having a map open while you do it. Unless you get super-unlucky, you shouldn't need to kill more than a few NMs.