Well, almost a year later I wanted to post back for anyone else who ever searches and finds this thread...
Got a set of Conti WinterContact SIs in the 205/60 on sale last spring, and have been running them for a few months. Fit just fine, no rubbing or issues with clearance on an all stock suspension. I actually like how the bigger diameter changes the gearing somewhat, and to me it makes the car more enjoyable to drive.