There were a few guys looking at setting up a King Air program up at Concord a year or so ago. I interviewed with them and was told they expected to be operational by September-October 07, but I never heard anything else, and to the best of my knowledge they are not operating yet, so I dont know if things didnt work out, or if it just got delayed.
Apart form that I think the closest 142 center to CLT is FSI ATL.