One size fits all for ther hydraulic clutch conversion, it will be MUCH MUCH lighter with it being hydraulic, a lot of effort is wasted in the cable systems overcoming cable friction let alone diaphragm tension, you won't be dissapointed that's for sure with hydraulic.
I'm using land rover series 2/2A slave and master cyl(£26.58 the pair delivered NEW) on mine.
tabetha