Spun bearing question

You need to be careful about choosing a machine shop to recondition your crank. I believe that mopar cranks have the bearing surfaces induction hardened and that hardness only goes so deep. Find someone with alot of experience and ask if it can be polished out and if not how much he thinks it will clean up at. Again he will only know for sure once he starts grinding, but a experienced grinder will have a good guess. A good grinder will grind that journal first to cleanup first and go from there. I have had cranks that needed to be welded to repair(not a mopar crank).

Back in the day when this engine was popular, most machine shops had an inventory of reconditioned cranks and just swapped them out. Good bye to those days.