Originally Posted by gunternomad
In the mean time Should I go ahead and open the gearbox? or is that pointless until I get the clutch hub off?
If you've removed the clutch mainshaft nut and the cush-drive,you could select top gear and start looking in the gearbox.That just means remove the outer and inner covers and "look".Looking doesn't mean touching or removing anything.
You can always remove the clutch hub later.If you need to remove the clutch hub and gearbox mainshaft,you'll have to fit the inner cover back in place.
You won't need to index the camplate at that stage,but it's simple enough to do that too.If you mark the quadrant position before you remove the inner cover,it's easier than me explaining how to do it from scratch.