ISO:
Nutted, mid reach brakes - up to 57mm in length - Diacompe, Weinmann, Suntour, Shimano (not real picky)
Helicomatic 6 spd freewheel - ideally with a 24 large ring but a 13-21 would suffice also
Have:
Short reach:
Sach New Success brakes - need recessed nuts
Suntour Edge brakes - need recessed nuts
Braze on Suntour Superbe front derailleur
Shimano 600 rainbow (6400) rear derailleur - a little scuffed
ISO:
Sugino 170mm Super Mighty left side crank arm
Have:
Sugino 170m Mighty Tour left side crank arm