
Unlike UK coupes, the Aussie coupe includes the C pillar as part of the roof lining. iirc the UK has a separate moulding for the C pillar.
Most preferred would be to find a replacement roof lining, but I suspect they are made from unobtanium.
My local auto upholsterer can make a reproduction lining, but that wouldn't be completely authentic (or cheap
Another option would be to cover the damaged area with some sort of "grill", since the perforations look a bit like speaker grills.