Hello Mate,
I see your little mark, I would recommend putting a touch up over it, it would just take the eye away from it, as its underneith that lip you will never know. It wouldnt be worth respraying the whole door. Is it a straight black or Metalic??
I'm in yarmouth my self, my father has Charles Calver & Sons next to desira on north quay.
Let me know how you get on.
Chris.