Full Size Jeep Network

My rig is out for paint and I’m trying to locate all the loose ends for when it returns. I’ve got a tweaked front bumper that needs replacing. Is a late j truck bumper a bolt on replacement/option or should I stick to a late wagoneer? I love the early bumper but understand the frame change makes retrofitting too much work

Tia for the info

My understanding is the truck bumpers are wider to fit the flares but maybe the three piece bumpers will work.