discs, pads and servo+master cylinders!!

[magpies]

There are many threads regarding 'up grades' of discs and pads but none for the subsequent changes of servo and or master cylinder. Almost all look at larger front discs and more competition orientated pads. Although specifically I am interested in TVR S specifications I have been targeted with as not getting the 'exact' servo / master cylinder to suit the new application - especially since the originals are no longer available.

what have you done?