Shouldn't be too bad if you run a 40-42 offset (stock is 44). They wheel will be a half inch closer to the spindle in the front, which is where clearance is tight, but since you're sticking with the stock tire it should work. There could also be some tight clearance between the corner of the tire and the rear part of the wheel-lining. To check this out, turn the steering wheel exactly 360 degrees and stick your hand between the tire and the plastic liner. With the stock tires you should just be able to fit your fingers in there, make sure you don't reduce that too much with the new wheels. What looks like enough space when sitting still turns into nothing when you're driving and hit a pothole or slam on the brakes.
There could also be a chance that the extra half+ inch sticking towards the outside could cause some rear fender rub, so make sure to check that out carefully before driving too far.
