Having been guilty of over-restoring a few, I'd vote that you leave it as is. My only caveats would be to treat the inside of the frame with some kind of frame saver (linseed oil would be period correct, if you want to go to extremes), and a complete and thorough rebuild, so that you can ride it. It was made to be used, of course, and we'd all like to hear your impressions of the ride.

(Tires may prove to be a little problematic, no?)