If you size your tires correctly to equal the same overall diameter, you can do the same offset. You can probably get away with 10mm.
Take a long ruler or something similar length and thin and lay it on the outside vertically across the center of the wheel/tire into the wheel well. That will show you how much room you have to work with.
Pics of how the stock wheels sit now?
Take a long ruler or something similar length and thin and lay it on the outside vertically across the center of the wheel/tire into the wheel well. That will show you how much room you have to work with.
Pics of how the stock wheels sit now?