Is there a best offset for 33 x 12.5 x 17?

Trying to get 33?s on my avi, front 3.5, rear 1..... what offset for minimal rubbing? I have the stock 18x8 z71 wheels. I think the offset stock is 25mm, i guess that?s a plus...

Wanted true 33?s but after measurements the 12.5 wide is the biggest problem, at 285/70- 17 with 18 not sure back spacing there is rubbing will need minor trimming at full lock. But I?m loving my setup. Tire is still 33?> tall