Parking Brake Cable Spare Parts wanted

Hi all
I need a new parking brake cable for my Left Hand side X350-04 (My car is LH steering btw, dont know if this matters). Anyway, I cant find anything on the webb. Have You any suggestions?
My problem is that the cable outher layers is damaged and humidity has entered through the metal spiral layer and now things get stuck…Have lubricated it up and put a temporarily split rubber hose onto but… its not a repair, reallly.