740 cable clutch

I'm getting the last minute details together on my M46 swap - I've got all the parts I need to use a cable clutch except the retainer on the pedal end, and I don't know how it sits in the firewall. I've never seen one in the car, so I don't have any frame of reference, and I've crawled all over the web looking for cable clutch 740 stuff. Does anyone have any pictures of how that all goes together? Just need to know what the clip/retainer on the clutch pedal looks like and how it comes through the firewall, I greatly appreciate it!