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Probably need a pro. In the past, I have been able to get small repairs like that done pretty inexpensively by telling the bodyshop I was not going to go through insurance, and I did not want to pay insurance prices. I called several local bodyshops who had good reviews, and went out and got several quotes.
Looks too deep to buff. If the pricing chuuck1e suggests getting is still too high, and if it doesn't bother you mentally nor when looking from further away, you could consider carefully/precisely removing the small bits of remaining damaged paint and dabbing a little matching touch-up paint purchased from the dealer parts department or other online sources.
Depends how you want it to look. Paint shop will sand and paint it and it should look like new. There are shops that do minor touch ups that will look pretty good. They go around to car lots fixing used cars with little chips and rock chips. Or get a dealer pen/paint and do it yourself. I have never had success doing it my self with a pen or a brush.