18x8.5+35 with 235/40R18
Will clear the coilovers and brakes, will sit flush with the guard without rubbing. and those size tyres will keep you speedo accurate. So i would personally go with that setup..
If you really wanted the 9"wide then i would be looking at getting this done to the rears (otherwise it is very likely that it will rub, depending on what height your car is at)
http://t3hclap.com/archives/49