Any modern square taper chain set will fit. The difference between Campy and JIS are so small that they can be safely ignored. However,
A BB from that time probably has loose ball bearings. Whilst state of the art for that time, a cheap modern sealed bearing square taper BB is probably better.
I've got a load of old components from the 70s and 80s and although they were top of the range at the time, modern stuff is so much better and cheaper so unless you are looking to build a period bike, I would keep them as collectors items.
Any modern square taper chain set will fit. The difference between Campy and JIS are so small that they can be safely ignored. However,
A BB from that time probably has loose ball bearings. Whilst state of the art for that time, a cheap modern sealed bearing square taper BB is probably better.
I've got a load of old components from the 70s and 80s and although they were top of the range at the time, modern stuff is so much better and cheaper so unless you are looking to build a period bike, I would keep them as collectors items.