That sounds scarily like my car, wonder if it was the same careless owner!
literally a key mark in the lacquer under fuel filler, couple of stone chips, and lots of marks on the boot lip and I even had a chip under the boot handle where it had impacted something when opened!
I have done alot of touching up and polishing and it has made a good improvement they can still be seen by me but most others dont notice them, its obviously depends on your own preference but surely a full correction detail by a professional would be preferential to a full re-spray, it also wont affect re-sell value whereas personally I would wonder what a re-spray was trying to hide.