All that handling is sure to fray the cable ends defeating your purpose.
Best bet is to use a solder compatible with stainless steel and solder the ends. That will let out slip cables in and out reliably without fraying. Also, while the inner wire is out measure cut and solder a backup cable or two, just in case.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.