Kenny Smith may be a long-shot candidate for the Knicks’ coaching job, but he doesn’t sound like one — saying he believes he’s “ready’’ to leave Charles Barkley and run the Knicks. The TNT broadcasting mainstay, who won two NBA titles as a Rockets point guard, said his Knicks interview Friday was “fun,’’ and that he is awaiting word on whether he’s going to be a finalist. Smith, who has no coaching experience, said he believes his analyst gig on “Inside the NBA” has “prepared’’ him to be head coach because of the “reservoir of information’’ he has gained. “The 18 years on TNT has prepared me for a lot of opportunities, and coaching is one of them,’’ Smith said Tuesday on SiriusXM Radio. “The preparation and reservoir of information, relationships from players to coaches, assistant coaches, from being in college basketball, doing the Final Four, AAU teams. Every element has prepared me for more direction.” The previous TNT broadcaster with no coaching experience who jumped from the booth to the sidelines did well — Steve Kerr, though he was a general manager first. Smith interviewed for the Knicks’ GM job in 2008.