Do you reckon a Campag Veloce 111mm BB would do it?
Yes, in fact I was going to suggest a Campag 111mm unit as an alternative. If you can find one, I'd prefer a mid-nineties Athena, or a Record or Chorus cartridge unit. The latter will be expensive, but they're very good quality. All of those models have adjustable chainline, like the Miche Primato. The modern Veloce doesn't.
As it happens, the Miche Primato, the Veloce, and the mid-nineties Athena are all made by Kinex in Slovakia. The cups and cartridge bodies are all interchangeable: Athena cups on a Primato cartridge, etc.
Calmes dans le demi-jour
Que les branches hautes font,
Pénétrons bien notre amour
De ce silence profond.