You haven't indicated where you live, This can have a bearing on component sourcing.
But if you like reading about this period
Reader's Road Bikes Forum | Retrobike
https://www.lfgss.com/conversations/238801/ and other individual threads
and sit in on the conversations in Dale's Garage at
Lightweight Classic Vintage bicycles you need to ask to join the group (button on the right side) and follow the rules!