I would suggest doing a member search (Airstream Forums - Members List - Search
) and checking off the boxes next to the type of inspector you're looking for. Enter SC for the state, and let it fly. The only bummer is that you have to know a lot of city names around you in order to know who's close because the search return doesn't show a map or a "distance from" column.
Also, you can click on the "Portal" tab and there should be an area along the right side of the page (scroll down) where you can select a state and then an inspector type. I did this, but nothing came up for SC. Bummer!