Do the scratches disappear when wet? If so its conceivable they could be polished out.
Dean from Dentcure in Exeter could sort the dent. It takes some special skill to work with aluminium but he has worked his magic on a few D2s for me and always comes through. He's usually booked up a couple of months in advance and he'll probably want the car for the day, but you could always go shopping in Exeter for the day
