number of years ago had same issue with a short customer and clutch pedal travel.
we removed inch from clutch pedal arm so raises it up by a inch, on this one one we made it adjustable to had two 13mm bolts that allowed the end piece to be adjusted up and down and in and out as such so could get it to find a nice point where feels right, i know its a bit of a faff but might be worth getting a clutch pedal from breakers and modify it to fit. by doing it this way the theory was if ever sold the car they could easy reset pedal back to where it should be and no one would be any the wiser
Thanks Mike. This seems like a cleaner approach. I may have to talk to some garages to who can help with this. Not something I would be comfortable doing. Appreciate your help.