Having separated and fragmented auras where each magus occupies a spot difficult to protect with an Aegis. I like it. 
So, I've been thinking about my character in the context of a Rhine saga; and it looks like it's Rhine, because you've been the most vocal and no one has naysayed you, so I'll take that as consensus (if anyone else has strong opinions now's the time to voice them). How fragmented and how wide an area are you thinking? I'm kind of thinking about the trader archetype and being around the Deutches Eck which is smack dab in the middle of Mainz and Köln, in Koblenz. He would likely be Gently Gifted, and I could see him trying to setup in Koblenz and be in the bustle of trading activity at the confluence of the Rhine and Mosel.
Speaking to the fragmented aura, perhaps we have a stronger aura in a small location where the ostensible council hall is and it's large enough to house a common lab that is better than what the magi individually can produce? I'm playing in Peregrine_Bjornaer's Canaries are Dying saga, and he made a common lab, by accident, that has too many specializations and is setup for transient use so the intelligence of the user doesn't interfere with the refinement score. We decided to leave it as is, despite the rules limiting the number of specializations from Covenants. I really like it, it has character and it looks like 5 people designed it for their particular needs, it's a hot mess. It breaks Hermetic limits and no one either stops to thinking about it or they don't care. I can see something like that developing over time, and indeed the story of making something like that is an area where we can collaborate without getting in the way of each other and slowing down pacing, as long as we reserve the lab before we start writing stories.