>
>Does the 93 crank have a standard spindle taper so that the arms would work
>with a Shimano or Campy bottom bracket?
I think it is standard enough to work on Campy, Sugino etc. In the old days
Shimano had a shallower taper as I recollect.
>
>Can I use standard crank bolts and washers? I know the extractor is a
>unique Stronglight size.
Yes, and it is simpler to avoid the 16mm Stronglight bolts as a very thin
socket is required.
>
>What length spindle do the arms take?
If you start swapping spindles it depends on where the cranks end up
seating on the tapers. Based on a Stronglight axle chart, I would say 120mm
with the right side 4mm longer than the left.
>
>Are the chain ring bolts an odd size?
I think run of the mill would work but the "shoulder" is larger for the
Stronglight.
>
>Does $45 sound right for the crank arms?
With rings and in nice shape that is OK. It you have to hunt down all the rings and hardware I'd look for something more complete.