The servo and the master cylinder look the same from what I can see of them.
I think Dax modify the push rod and then add a screw on clevis type fitting.
The Dax kit also comes with fittings that push into where your current fluid reservoir is and alows a remote reservoir to be attached higher up the bulkhead.
There are some nice pictures on this thread of the new clevis and pin arangement for the top of the pedal.
Gillingham
I could take some under bonet photos during the week if they would help.
I thought that white plastic cover on the servo shaft was for protection during shipping. I took mine off and threw it away. Hope it's not needed!
Craig.