Alongside the 7 speed index/friction shifter, I could be interested in,
2 friction only thumbies, I don't see how there'd be a difference between the rear and front if they're not indexed, perhaps the leverage ability is less on a FD friction shifter? I always just used the same ones I'd use for a 5/6/7 speed rear derailleur
Sugino 3x mtb crankset would be useful as well.
the rear needs more cable pull so some have a bigger barrel and are not always swappable