Hi Kriss,
on those early 3W it had been necessary to fit a kind of end stop bracket for the clutch pedal. If that one isn`t fitted it could be possible to give too much pressure onto the pressure plate.
Morgan states: This will prevent the clutch pedal and clutch from being overthrown too far.
This is only for 3W`s with the early pedals with "3W" cutted out on the pedal.
If you send me a PM I could mail you details to that if you are interested. Maybe this is the cause of your clutch failure.
Kind regards
Franky from Hamburg