not much room on firewall due to brake master sitting so close. couple spots you can put it.. one is the usual spot like this. i put another piece of panel steel under it so the firewall is flat. need to drill a hole in clutch pedal and 3 holes in firewall to mount clutch master. fitting a clutch pedal box from a later car would be a better setup than without one though.
second place is like the following. set this up by reversing the std clutch pedal arm and i think welding it in position so it faces upwards on the accelerater cable side of pedal box. (push instead of pull).
converting t50 to cable would be less work me thinking? need to weld a threaded boss onto passenger side of bellhousing for a k40/k50 type clutch fork to pivot on.
or could make a bracket on outside of bellhousing that connects to end of clutch cable and holds it solid so that the cable outer sheath connects to clutch fork instead.