I think I stumbled on my answer. In the Geometry Geeks database there is a 2006 Bianchi Giro (59) with identical measurements and Bianchi even provides stack and reach. Now I can effectively compare a potential bike purchase with my current 2014 (59) Bianchi Intenso (endurance frame) with my old race frame, 59 Bianchi SL Lite Alloy.

https://geometrygeeks.bike/bike/bianchi-giro-2006/

Thanks for everyone's input!