Many more individuals than your sample size on this forum have made changes from the stock sizes. You could increase your statistics greatly if you searched and read the numerous posts of persons who have changed there tire sizes and or wheel sizes. This, of course would take a little bit of work on your part.
There are one or two on here that are running 17" wheels.
You never have enough time to do the job properly the first time, but you always seem to have the time to do the job a second time....