A "good" saddle does not neccessarily mean "Brooks" or "Ideale" for everyone. A classic Selle Italia Turbo or Selle San Marco Rolls or Regal can be just as comfortable for many people as the leather suspension saddles will for others. So don't limit your choices.
I would also not hesitate and try out the latest design saddles in the market as saddle design technology has progress wuite a bit since the 80's ans 90's. i don't see it as a big "sin" to put new tech pedals and saddles on a C&V bike as they are two of the most critical interface a rider has with his bike, where comfort ans safety can take a dirver's seat over classic aesthetics.

Chombi