If the owner doesn't have the original parts that came off it. I would just leave it there and look for another that is still stock. There are plenty of used Jackpots and vegas out there. This is exactly why I always keep all my bikes stock parts.
99 Kawasaki Vulcan 800 (sold)
2012 Vegas (traded)
2013 Cross Country Tour
Victory Tri-Ovals, Reverse Kit, Lloydz air filter, Lloydz quarter turn throttle ring, PCV, Lloydz Touring cams, HMD Bars, DGD keyless ignition, Rockford Fosgate Amp, klockworks windshield. 119hp 123lbs torque.