I got hold of a '70 Belgian Browning I. The thing looked like it had spent every day of its unloved life outdoors. Pitted bad, only paint left, was some faded remains that were slightly protected by the name band wraps on the down, and seat tube. Could not bring myself to paint over 45 years of hard earned patina. New parts will gleam next to heavy oxidation. I put some 1/2" red vinyl tape around the faded original name bands just to make them pop a little more and called it done. Yeah, I can definately see where you are headed with this. Like primered Rat Rods that paint the roof to perfection but leave everything else as a seeming work in progress. Not sure everyone will "get it", but you may start a trend. I like the idea.