Okay, I'm back from the garage, and have found the offending components.
Both disturbing, yet convenient, the split-pin is missing from the clutch pedal, however the clevis pin (I think that's what you guys called it earlier) is still in place. Glad it stayed that way during the few times I drove it.
I already thought of threading wire through it. It seems like a really good idea. It's good to see the great minds at work on this forum!
I haven't done anything more with it tonight, because it was pretty dark by the time I got to that, but I'll be up there over the weekend. I did manage to get the four subframe bolts that I was asking about undone, so there's another bit of fun for the weekend.
Matt & WantOne... It'll be cool to meet you guys sometime. I'll keep in touch.

I wanna tidy up my garage a bit before I show it to anyone though!
Thanks again, all!