WD: By "complete" do you mean Book of Eldritch Might? That one's not needed for this game, only Experimental Might.
I'm thinking of mixing all the disciplines, so a shamanic type might have one of the "Magic Sight" disciplines, and maybe the Wizard's Familiar discipline to give a kind of spirit guide (the BOXM familiars are a bit like the daemons from His Dark Materials trilogy, more spirity, less a talking rat).