Depending on how far the tires stick past the fender flairs, I have been contemplating the superduty cutouts. A little plastic weld and steel backing strips on the cut lines and they could work out well. Place them where you want them, drill and mount.
Only thing is with the rear and trying to make something work. I would probably try to cut and weld the rear arch up higher in line with the door arch, and cut the superduty flairs to match.
Although, based on what the OP stated, he is just looking for coverage, not really clearance.
Seriously though, have you tried to just add mudflaps to the back. Get some big rig ones and make some mounts. Most cops are going to hassle you for the rear as it flings everything up and out. As long as from the rear you have the tire behind a flap, that may be all you need to do. Look at all the jeeps out there.