I am an HO guy, but before I was born, my Dad bought a Williams Crown line challenger #3958 in UP grey. As far as either of us know, it is single owner and had never been run except probably a test before it left the factory. I plan to join the local Mobile, AL club which has a O-gauge portable layout. There is a show in 2 weeks, and my hope is to try running the engine for the first time then. Not being an O scale guy, is there anything I should do to it since it has sat so long? Oil the gears or replace drive belts? I am not familiar with its mechanics and I don't see much online other than it is a good locomotive. Any advice is appreciated.