The most reliable way I know to line up that vintage of models and sizings is on the Cranksets page of the Bicycle Classics site http://www.bicycleclassics.com/
, run by Greg Parker. He tries to stock a wide range of NOS classic Campy components. He sells Phil, too, but I haven't seen Miche at his site.
From his tables you'd find the standard chainline to be expected with a fully vintage gruppo. If the 42 mm chainline you want is not Campy's assumed value (I suspect their system is build around 43.3mm or 43.0 mm), you might not find exactly what you need, if it exists.
Second choice, for help in finding the best available compromise, for me would be Peter Chisolm at Vecchio's in Boulder, Co, probably one of the most authoritative Campy experts out there. One of his specialties is making odd mixings of components work right.
Last edited by Road Fan; 09-04-08 at 01:59 PM.