I am buying a 2006 Warwick Corvette Standard Fretless. The owner indicated the bass has not been waxed or oiled. They are the original owner and from talking to this person and the pictures I saw of the bass, it was used very little and looks to be in excellent shape but still has never had the body waxed or the neck and fingerboard oiled. When I get the bass, I would like to clean the surface before waxing the body and oiling the neck and fingerboard. Can someone recommend a cleaner?