More like a dent than a scratch. You should have fixed that when it happened through insurance. Looks like old damage.
Even if the excess is 3-5k it's worth it because it should help with resale. Don't try sell with that scratch.
The major diffs would be a quicker sale with the dent sorted. Since its split in two with that fold, it should be easy to isolate the repair to the bottom half and still have it look good!
I'd love to own one of those, but Honda spares prices scare me lol.
It's not a scratch and a dent - it's a dent with a long penetration of the metalwork? Likely R15k at a panelbeater as they will replace the door - plus a bit of work on left passenger door as well?