I would always recommend PDR anytime it is possible, but that looks so severe it may not work.
Why not find a fender used, in alpine white? If its OEM with factory paint, it should bolt right up and look good as new!
GT1/ISIS/MoDiC = Factory authorized diagnostic system used by BMW dealerships across the world.
NCS Expert = BMW Factory R&D programming tool available on the internet (not intended for the public and not available to the dealership network)
OEM = Genuine BMW part only available from a franchised BMW dealership.
DME = Engine Management Computer
eGay = eBay