Yes I did mine last week.
Undid the bolt and nut holding the master cylinder to the bulkhead so I could pull it out enough to rotate it slightly so I could get a spanner on. ( I have seen some openended right angle spanners that would have been ideal for this, but dont have any ).
Old one out, new one in. Some fluid loss.
Re-bled the system, which was a right pig. It took longer to bleed than when I changed the master cylinder.
Stopped the over-rev on gear change immediately.
Del.