ISO:

7 spd Helicomatic freewheel with 28 or 30t ring as the low gear
BB spacer for my PX10 project - 2 mm should suffice

Have:

Suntour Superbe Pro braze on front derailleur
Shimano Deore LX front derailleur - 31.8 clamp size
A couple of wide range Suntour freewheels