A great Cinelli in a classic color. To me the last thing you would want to do is "restore" that bike. A careful cleaning and full meachanical overhaul is all that is needed in my opinion.

I'd say mid to later 60's with some updated parts along the way. Nothing that would be out of place on a bike that was being ridden through the 70's. I'd probably leave them with the bike as they are all good upgrades if you are going to ride it.