Campagnolo from that vintage will be a thread on freewheel and not a modern cassette.
The spacing will be 126mm, so modern hubs will not fit properly.
There are hubs available, both new and used from that period. Depending how exacting you wish to be, you can find hubs/cones with date codes.
Spokes from that period run the gamut , from galvanized zinc to really nice double butted stainless. Lots of choices.
There are also rims available to get really close to original spec.
Good luck.
rusty