[dfurseth]

I run 19X9 ET29 with 255/45ZR19's. That sits my wheels 29.7mm farther outboard and looks great, basically flush with fenders. Yours would be similar. I would be weary of 6mm less inner clearance though... You might want to get under the car with a tape and measure the clearance to the strut tower.

Side question: why are you thinking staggered? There are serious known dangers to the X-drive, specifically the transfer case, with staggered wheels. I would recommend just going square with the 19X9.5's and 275's on all four corners. But maybe you already thought about this, just curious why you would go that direction?