There's a sale on the XK Pintlers now if you wanted to run new wheels. They'll sit in a bit further than my wheels which will help you clear the rear HVAC lines. The JK Pintlers are equivalent to what i'm running if you wanted to go that route.

It's hard to find aftermarket wheels for these vehicles that allow the use of bigger tires. With an 8.5" wide wheel you don't want to go any more than 5.2" backspace, with 9" wide you'll need 5.7" backspace (thats what I have) to clear the pinch weld area when you turn the tire.

8.5" wide with 5.2" backspace is ideal IMO, but there's very few wheels out there built with those specs.