Old like Record 10 speed or old like Nuovo record 5/6 speed? I think you can make it work. Campy is more forgiving than Shimano with the indexing on the front derailleur. If it is a really old crank, you might have to respace the bolt hardware so you don't drop the narrow 11 speed chain in between the chainrings.

Athena comes in 53/39 as well.