Did you want to do it yourself or did you want to hire someone to do it?
If you were gonna hire someone, I would look into buying new ones instead. Unless you are racing, you can buy really nice after market rims now for very cheap. They are not as sturdy as high quality rims but for normal driving they do just fine. I purchased 2 sets since last year, one for my van and one for my car. Each rim cost me 110 CAN$ so installed you are looking at about 600 CAN$ for the 4 of them. In the US it is most likely much cheaper. The brand I purchased is RTX. I looked them up and found no bad reviews.
Otherwise, if you wanted to do the repair yourself, it is easy to do but it takes quite a while. The process involves taking all 4 wheels off the car, grinding the damage out with a dremel or sanding them out by hand with sandpaper (takes a lot more time) then sanding the whole rim, painting it and finally re-installing it. I would say you are looking at about 2-3 hours of work per wheel. The good side is that it will cost you about 50-100$ total in material to do instead of the 200$ per wheel a professional will charge you.