There's a really easy way to select a modern replacement BB, if you want to go in that direction. Just take the vintage BB axle width, and add the vintage drive-side offset. For example, campag road would be 112 + 3 = 115 mm symmetric for a modern nuovo record.
Campy cranks are diagrammed in catalogue 17 at http://www.campyonly.com TA cranks are diagrammed on sheldon brown's website where he sells TA. Sugino cranks are diagrammed on this web page (translated from japanese by google or babelfish, i forgot which) :
- Don Gillies
San Diego, CA