It's paint grade and from the pics, it looks like there's already a lot of paint on it. That definitely takes away from the details which actually helps if you're trying to repair that damage.

Anything is fixable.

Not really if you are wanting to make it look like new. Just go buy a new one and be done with it. Whoever did that needs to be the one to pay for it, too.

Yes.

By somebody who knows what they are doing.

depends on how deep the gouges are. but yes it can be fixed.