OEM wheels should be fine as they are usually 8 or 8.5" wide and along with mud flaps in the back, you should get adequate protection. I had a mix up with the 18x10 rear wheel offset and didn't know it until the tire was already mounted and we put it on the car and it stuck WAAAAY out! It was a 22mm offset wheel in a correctly marked 40mm offset box

That's not a good combo at all when you consider the tire is 29.2" tall and the car is lowered 1.5" in the rear

It all got taken care of and I now have the correct wheel
I couldn't even get my fingers in between the tire and fender!!!!!