SAN FRANCISCO – Elon Musk told jurors on Monday he was positive he had locked up money support from Saudi traders in 2018 to consider his electric vehicle maker Tesla Inc. private, and could even have made use of his stake in rocket firm SpaceX to fund a buyout. At the trial in San Francisco federal courtroom, the billionaire, who reported he was worn out from a lack of rest, spoke quietly and calmly all through about 5 hrs of testimony. “With SpaceX stock alone, I felt funding was secured” for the buyout, he told a jury, referring to the aerospace company exactly where he is also CEO. He added…