First things first, take a look at what my buddy Toby posted on House Diedne, our other blog: “Hen Ogledd“. What a great load of fantastic work!
This is what I mean about a simpler Ars system. Find a fantastic period in time, whip up some quick characters, and take off. Of course, if the period in time completely grabs your interest, setting a long-running, complex, full-on-rule-set-Ars is the perfect pill to what ails ya.
Nice job Toby.