That's another question. I wouldn't try that.
Mine are 10 and 11 wide.
I'd just get a square 275/30/19 if I was you.
EDIT: edited a better fitting size.
Interesting. I'm not tracking the car or anything just driving on weekends, so handling isn't too much of a concern. That being said I think I'll try this staggered setup until I get a set of 9.5s for the front, and then try a 285 square setup.