A bit more progress:
As always, we are trying to think ahead and have been planning the great reassembly of the drive shaft between clutch and gearbox including the clutch release mechanism. Tony caused us some amusement by saying don't we need a new one of these?
'Yes' we said 'and you have already made it!'. There, in the back of the cupboard was the shaft finished, painted and ready to fit. When it arrived, it looked like this
Both bearings and the levers were on it but heavily corroded. Tony stripped it down and made new clevises as we deemed the others to be beyond repair.
The drop arms were built up with weld and then Steve dressed them back, bored them out and bushed them.