I would unscrew and remove the fender plastic protector things then have the fenders rolled at a minimum.

For a 20x8.5 i would run a narrower tire like a 225x35x20 and for a 20x10 something like 265x30x20. Then i would pick the more aggressive lower offset sizes for the wheels. If u lower it more it will naturally start to increase the negative camber.

I would lower it down as much as u can safely drive for your area but don't be afraid to take some gardening or heavy duty scissors to the inside fender liners for removing spots where it is rubbing.