Both easy jobs.
For the throttle cable you remove trim above throttle pedal, two half turn plastic screws. Un-hook the cable from the back of the pedal.
Now contort yourself a little and look up in to the foot well and you will see where the cable goes through the bulkhead. Held in by two plastic tangs. Push them in with a screwdriver and it pops out of the bulkhead.
Go undertake bonnet and pull it through and unclip all the way to the throttle body. The other end is just a push fit ball.
Saw some very fancy big clutch stops, mainly on USA shops but just made my own. Unscrew flat clutch stop, its just a big plastic bung. Got a rubber door stop off Amazon and just used a self tapping screw through the hole in middle into centre of the clutch stop. Then just screwed the clutch stop back in. It was 10 minutes and is spot on. Rubber door stop was large version 33mm x 20mm
I have just fitted H&R lowered springs and Spax adjustable dampers and I am not sure which made me grin more, them or a little rubber door stop..........