yes you can replace it from what I have done. Different models maybe different but I would think an MK2 is an MK2 and an 020 is an 020 for the most part.
looking at your pic, both the pedals look the same, so it shouldnt be a problem there to get cable on, on the other end its the arm on the trans, the manual cable is a simple attachment there. i think its just slip ball thru and put 'base' on other side.
Thanks, all !!
For now I will adopt the "if it ain't broke, don't fix it" method. I think the pedal end of the cable might be wearing out as it is plastic/nylon. I'll deal with that later. It has been 300,000 mile for this cable !!!
I detached the clutch lever end at the tranny and reset the self-adjuster. It actually worked quite well to adjust the free play.
I would like to go back to the manual adjuster, but that's low on the list for now.