Restore logic says you might want to replace it with maybe a Dura Ace 7400 series crankset, but the Chorus crankset was actually an excellent crankset. The lightest and most aero crankset (because of the very flat spider offset) of the then, "new age" Campy components.
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72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)