There are I beleive a few centre push ones that will fit with some light machining, I can have a ask around if you like.
The reason why I went for "external" slave was in case of any problems, ie if the cyl started leaking a few years down the line, simple unbolt job 10 minutes instead of box out job, the reason why I went for land rover series 2 and 2a parts was the rebuild kits are £2 if needed, plus these will be made long after others have ceased production due to no demand, landy's go forever the older ones, easy to get as well, like I say £26 the pair delivered.
Anyone wanting the reinforcement plates, which MUST be used I can get these plasma cut no trouble, I'm just using my step drill to do mine.
If you use a larger mc this will of be slightly heavier but with reduced travel, still way way lighter than a std clutch on cable however.
It is possible to make this with NO WELDING needed not even to the clutch arm, very easy to do, and cheap.
tabetha