I am getting some 20X8.5" wheels for my car. They come in an offset of 38. I will be running a 245/35/20 tire. I am on jic coilovers. I want to sit the car right on top of the fenders. Will a 38 offset be ok(rubbing etc)? They can shave them down to 42 offset but it will coat 25 more per wheel. Which one should i go with..thanks...