Tour de France 1970?
Your best bet:
gears, brakes, chainset, hubs, pedals, seatpin, headset: Campagnolo Record/Nuovo Record.
bars, stem: Cinelli 1a, Cinelli 64,65, or 66.
Saddle: Cinelli Unica Nitor padded.
Rims: Mavic sprints.
Frame: Reynolds 531db or Columbus sl.