I would guess that basing yourself in Charleston and doing the occasional trip into other parts of SC and up to NC would work pretty well.  There are quite a few providers who do the opposite - ie, live in Charlotte or Upstate SC and occasionally visit Charleston - so having your base in Charleston would set you apart from the crowd a little (but there would be others who do the same).  As a long-time hobbyist who only participates a few times a year - I would drive to Charleston (2 hours for me) to see you.  I didn't see anything on your website that would be out of line for this area.  Let us know what you decide.