Having spent a frustrating time lying upside down in the footwell trying to fit the clevis pin back into the clutch master cylinder, I made a simple tool.
I'm sure someone must have done this before but I've not seen it so if anyone is interested here it is.
2 slots cut in the end of a steel strip (junior hacksaw) just wide enough for the pin then bend the centre tong to grip its head and you can easily reach up behind the steering column to insert it in the fork.
Peter