Tony, IMO the brand new MBW SDs will need a fair amount of work to get it closer to Gen in particular the case ie. drilling lug holes, Shaving the Crown guards, softening the lugs and ageing the caseback to name a few. If you can get your hands on one where the bulk of these mods have been done then it gets easier. All you will need is a gen crown, crown tube and reluming the dial and hands. However, there are always more mods to do to get it as close to gen as possible.