It seems that I didn't send the new owner the invoice for the parts, after all. So I've no idea what I've done with it.
However, the good news is that I did keep the PM from John Nicholson with the required parts list:
CLUTCH HOUSING COVER 11 14 7 700 331
GASKET 11 14 7 700 194
NEEDLE SLEEVE BEARING 21 21 7 701 501
NEEDLE SLEEVE BEARING 21 21 7 700 120
SHAFT SEAL 21 21 7 700 173
If you want to 100% sort it I normally change the shaft as well :
OPERATING SHAFT 21 21 7 700 306
CIRCLIP 21 21 2 343 258
I got the parts from John Clark Motorrad in Dundee. It took a few days for them to source them from Germany.
HTH