Harley,
Do you have a standard clutch setup?
My master cylinder only has 25mm movement - Checked with a bit of wire inserted into the top of the cylinder and press the peddle to the floor.
Sorry, but can't tell you how much the slave is travelling as the car is in bits.
There is some info in the following article that may help you (not sure the referance to travel taken up by the adjustable stop is correct - the 0.069")
He talks about 5/8 movement at the slave, but not sure what size cylinders, or if he considers flex in the hose, etc. if there is any.
http://www.minimania.com/classic-mini-c ... cfm?id=153