no one in their right mind would cut up a wagoneer ltd...
i just did the cut and raise on the front fender flare (super common deal, see my avatar). take off the flare and raise it up to the body line and mark new holes, drill them, cut all the excess off, and remount them. while you are under there you will also want to cut the piece that runs down by the front bumper cap and slice and bang back the death seam from hell.
as far as the rear goes a 31" tire tucks up ridiculously well on mine, it gets lost in there pretty much. i took off the rear flares and cut all the excess metal around the mounting holes (for good measure) and just re-mounted them.
there are plenty soccermoms around if you need help