Last clutch I fitted for anyone other than myself was an LUK Repset Pro (freelander 1 TD4) to a 75 private hire taxi in October 2017.
I flushed out the master, then removed the piston and cleaned the poppet valve and lubed it up with a smear of Renolit red rubber grease on the seals, then bled the master up before connecting it to the slave pipework.
Last time I drove the car was in May this year, when sorting out an ABS issue for the owner, the car has covered circa 170,000 miles since fitting and it still felt nice.
The trick with these is how you thread the pipework through the hole in the bellhousing........it needs to be done without the use of force.
When it comes to mileage, the car has just shy of 500k on the clock, and this is the third clutch since new
Brian