My copper '74 is set up pretty much as it left the factory. The sew-ups have been swapped with MA-2 rims and clincher tires. A frame-fit Silca replaces the grey Silca that required an umbrella clip. I've installed some low cost MKS pedals in place of the Campy Record pedals with the steel plates. These were done to avoid wearing out most of the original parts.
The narrow 38cm handlebar might be the most unique thing about how it rides. Having your hands so close does affect how you control the bike. It does help you stay a bit more aero, though.
I still have the original stuff, minus the freewheel, so it can be brought back to essentially new condition....
Steve