im running a 18x8 +22 with a 225 in the front and a 18x9.5 +22 with a 255 in the rear, they sit pretty flush i have no spacers, the only thing i had to do was on the inside on the rear roll the lip a little up not too much so the tire wont rub on the fender since mine is lowered on tein springs, i know you said you didnt want to touch the inner fender, but i only did it in the rear the front cleard fine and all the lining is untouched.
this is the rear
this is the front
