Have a look at the service info, all you need to know (almost) is in this doc clutch.pdf
The trick to adjusting the clutch operating rod length is to push the seat right back, put a bathroom stool next to the driver’s door, rest your hips on this and then lie on your back under the steering wheel with spanners, torch and swear-box.
Don’t forget the reading glasses, it is tight and cramped in there.