A job fair expected to attract 1,500 people to Ogeechee Technical College Wednesday, had already processed that many applicants by noon. By 6 p.m., 3,500 people had filled out employment applications to be part of Great Dane’s initial workforce when its 450,000-square-foot manufacturing plant opens in Statesboro early next year. “I didn’t expect this many people, obviously,” said Kevin Black, the plant’s manager.