Thank you, but think that Terri-Anne has it all covered on her website (power brakes for series Land Rover) - the servo can, just about be made to fit by changing the forks, but it looks a bit odd (this one is intended to be a bit stealth).   pending no big changes in opinion, I think that the above is the reassurance I needed to stick with the factory servo and the 90 master cylinder coupled with the correct 90 calipers/rear cylinders and the various valves etc. now just need