Man, this has been beat to death all over the forum. A "search" will net you the answers. In summary, though...
You cannot use the 5 x 4 3/4" lug pattern. You must use 5 x 120mm.
I'm running 18 x 9 w/48mm offset in the rear, 275/35/18... 18 x 8 w/48mm offset in the front, 245/40/18. They fit perfectly. That's all I can say. The offsets you have listed are not "stock" and may or may NOT work.
Several folks, Howie at Arrowhead Performance specifically, spent a lot of time and effort trying different wheel/tire combinations. If I were you, I'd search the forum carefully and check out their findings. It's too big an investment to "guess" at.