Any deformation of the skin like that shows underlying damage to the structure...the frames and intercostals.
Repair certainly ......... problematical due to location of the aircraft.
I've been to that airport to rescue a diverted 777....we had 40kts wind and horizontal rain, cloudbase 500 feet....not nice conditions to work in. The USAF have some hangarage there.
Boeing AOG repair team would be quickest option to get it flying again...albiet not the cheapest option.