An uncreased dent isn't too hard to push out, and with a roller on the back side, minimize to a point where you are the only one who notices it. With a gouge like that, you can either live with it, replace the whole panel, or ... find someone who repairs AIRCRAFT skin and have him/her have a go at it. It will never be perfect, but it could look a lot less bad. This isn't something that I'd try - but if you do decide to take it on, get some scrap aluminum, and do some practice repairs first.
Today is a gift, that's why they call it the present.