Really nice bike! Definitely a keeper.
While I do think it is fine to preserve the "patina" with some cleaning, buffing and touch-up, I personally see nothing wrong with a re-paint. A huge qualifier for me is that the repaint *IMO* should be done as a restoration (by someone such as cycleart/Richard Sachs), even one of the lower cost re-paints from them with original decals. This is mainly because of the caliber of frame/components. If it had Campy Victory and the frame was an equivalent grade, I'd be less inclined to spend the money for a top-end paint job, though a basic strip, paint and re-build would be on my agenda.
I personally would not go for a generic re-paint or powder, again because of the caliber/provenance of the bike.