(AP) — A sprawling industrial park near Reno where wild mustangs roam among the sagebrush has become the focus of Tesla's unusually secretive site selection process for its $5 billion battery factory, but the groundwork taking place is no guarantee that the plant and its 6,500 jobs are coming. Gilman, principal and director of the Reno Tahoe Industrial Center, still likes the chances that his site east of the high desert suburb of Sparks will land the giant lithium battery plant, in a state still recovering from multiple years of having the nation's highest unemployment rate. Tesla chairman and CEO Elon Musk told investors in a webcast Thursday that the company wants to do similar site work in one or two other states "before we actually go to the next state of pouring a lot of concrete." "Given Reno's geographic proximity to Tesla's California headquarters, it should be no surprise that it would be identified as one of the possible sites," New Mexico Economic Development Secretary Jon Barela said. California Gov.