A banged-up Ole Miss offensive line has its hands full Saturday with a South Carolina front every bit as formidable as Kentucky’s. The Gamecocks rank Top 30 nationally in total defense (14th), passing (23rd), rushing (28th) and scoring (30th). Kyle Kennard is the SEC leader in sacks (5.5) and tackles for loss (8.5). “We beat ourselves,” in the Rebels’ 20-17 loss to Kentucky, lead Ole Miss running back Henry Parrish, Jr., said this week. “Just have to go out there with a mindset that it’s us vs. us and not vs. the other team. We know what we have. Just have to go out there with the mindset that…