So here's the epilogue in case anyone's interested.
One problem since the rebuild - i shuddered to a halt in South London bandit country this morning. On attempting to re-start, I smelled fuel, and looked down to see a growing lake. Took two hours for a rescuer to arrive with tools. The tank connector had come off. It would go back on fine, and click, but it did not positively locate, and could be pulled straight back off. So we hacked it off and replaced it with a bit of hose and jubilee clips, until I can source a replacement.
Plenty of positives. New clutch, swinging arm bearings, and exhaust gaskets have transformed the bike. It is eager, hungry, poised and powerful. I remember why I loved this bike so much, now.
