Hi Paul,
My 930 is a cable operated clutch, which many of them (all?) are. You can convert it to a hydraluic assembly easily. PowerHaus (not sure if that is spelled right) uses a little MG slave cylinder to do this and taps two studs in the case to hold it. I bought the slave but haven't tapped the holes yet, however, it looks straightforward because the casting rib you tap is really thick. Easily you can put a 1/4-20 stud in there and that will be plenty to hold it. You can see some pictures of what that looks like the the RCR section where someone asked about Sandy's box.
My Lola work is just starting back up today with the front part of the car but I won't be messing with the transaxle until Kennedy/RCR has the pieces for that to ship to me.
Ron