Hey op- when u mentioned you don't want to mess wit the camber I thought you meant stock height.
If you're willing to lower the ride and just get the camber for the rear close to stock, you can use much more aggressive offsets. I think the spokes bending inward will prevent you from having a deep lip due to caliper clearance so if you run more aggressive offset, you can obviously gain more lip width.
For instance ET15 front ET12 rear.