Yes I'm running it!!
I used the land rover master and decided due to health reasons, and reliability to go with a concentric slave, I used a Chevy/Mustang T5 kit from the us, cost was £123, plus about £15 taxes(they mistakenly put down wrong value!!), just tweaking it here and there but done around 1000 miles with it now with no problem at all.
I didn't like the reyland kit the way it was attached using lugs, and the price, very expensive for what it is imo, so went my own way, I've plated each side of the bulkhead, just making a different part at the mo that will mean the cylinder gets a more direct push, slight angle at the mo, but mines adjustable for height and ratio/effort wise, so you can have it either easy and long stroke or shorter stroke but harder.
In my own case the pedal is set about 1 - 1 1/2" higher than the brake pedal due to my left leg being around 1 1/4" shorter and not being able to reach ha ha!!
tabetha