For the price a sandblasting place will charge you, your better off buying a small sandblaster at harbor frieght or a place like that to do something like a bumper. It will be a small investment, but I bet you'll use it a ton once you have it. And abrasives are cheap if you get them at a steel place. I did my entire frame with a small unit from there. When I have something large to be blasted, I use Logan Steel in Meriden. I know its a bit of a hike for you but they are good.