A 225/45/17 is half an inch wider and taller than a 215/45/17, that's a pretty big difference.
And you don't have to have micro tires to have them fit. A 205/45 or a 215/40 would alleviate quite a bit of rubbing on their own, heck even a standard 215/45 would help.
You've got to determine what bothers you more, not having the money in your bank account or rubbing.
Feb 2011 Ride of the Month ~ 2011 Hatch Nation Hatch of the Year ~ 2011 Focus Fanatics Ride of the Year!
Hatch Nation #2