My servo arrived today too, thanks very much Mike.
It's MASSIVE. Much bigger than I was expecting from the photos. It looks just how you would expect a "Made in the USA" metro servo to turn out
I've done a very quick measure up and as Pete says, can see a few bits of fettling needed. the pedal box mount will need some of the bolt holes filing out and I also hit the same question mark with the out put connection to the master cylinder but was sent to the supermarket before I could give it any real thought. Will have to go back through this now epic thread and the photos to see what's what