The Campagnolo Hierachy, from top to bottom, circa 1990 was Record, Croce d'Aune, Chorus, Athena and Xenon. However, Campagnolo from this era does not index very well, certannly not as well as Shimano. Campagnolo really didn't approach Shimano in indexed shifting performance until 1992.
To keep it Italian, good shifting, triple crankset and reasonably inexpensive, I'd be looking at late 1990s Campagnolo equipment, which means Athena or the lower Veloce or Mirage.