Oakland mayor Clifford Rishell, California state assemblyman Don Mulford, and members of the Oakland Chamber of Commerce met to prepare for tomorrow’s meeting with Barron Hilton and other Chargers officials. Hilton said Oakland was “almost a unanimous choice” for the last AFL franchise. He also said a decision wouldn’t come until at least the 21st, when the league had its next meeting. Prospective ownership groups would be required to post $25,000 in earnest money. Robert Lurie, a San Francisco-based prospective owner, said he’d prefer that a team be based in that city rather than Oakland. Robert Osborne, an Oakland city council member and area industrialist, said a group made up of “prominent East Bay citizens” headed by insurance magnate George Jacopetti was also interested in backing a team.