I need to know what a good offset would be for an 18 or 19 inch by 9.5 front and 10.5 rear wheel. I want an agressive look and a big lip in the rear. I do not want to roll the fenders, and I plan on lowering the car a bit. Also, just want to make sure. The higher the +offset of the rim, means the rim will have less of a lip, right? Thanks.