POLL-Paint or undercoat?

How much driving do you intend to do and in what conditions do you drive in?
Show car or go car? Speaking for myself protecting the steel for as long as I can is the goal for the long haul! PS i found it very easy to remove the original undercoating so that might be the way to go...
Not a daily driver. This is a resto play-toy and will never see salt or snow again if I can help it.