If it were me, and I couldn't feel the gouge with my fingernail, I wouldn't worry about those scuffs on the walls. Possibly happened from too little oil or lube on and around the rings at assembly? From your pics, the head gasket looks fine (from what I can see, anyways). Appears to be no breeches along the cylinder mating rings. Perhaps it was just the head bolts not retorqued, and loosened up just a touch?

85 4Runner - With NEW Marlin 4.7 Gears!! It's a whole new beast!