Christmas comes early! 1 week turnaround from MotoRapido, v impressive given some parts had to come from Italy. All in (just for the sprag parts) £224.00. The clutch itself was only £49.00, the driven gear was £100.00, the cup spring (a bevelled washer) was £19.00 so it all adds up. I also ordered a new Nut for the flywheel as advised.
Ended up buying an impact gun from Machine Mart (450nm mains electric) and a 30mm deep impact socket from Halfords, nut spun off in seconds.
All going swimmingly until.......