They are obviously not "just" hubs to you or you wouldn't have begun this thread. If you ride them you will regret it. Build them up and (1) sell them to a collector for collector prices, (2) mount them on a similar vintage, similar condition bike and either keep it or sell it for collector prices. A pair of similarly functioning hubs are comparatively cheap. Why would you want to take the "mint" quality from these for no reason?