Such a thing as a Linhof Short Throw T-Lock Cable Release " For European shutters"

[John Koehrer]

Your initial impulse was correct(bullshit).
I've lengthened one once and it worked, if you didn't look VERY closely you couldn't tell the difference between original.
DIY stuff:
Remove the screw end, and cut the sheath to the length you need. I wandered to the local hobby shop with the release and looked through their brass tubing. Found one that was a snug fit on the cable. Some hardware/craft stores may also have the tubing.

Cut it long, installed it with JB Weld and trimmed it to a working length. I used enough of the JB to fill the tubing so the end in the shutter was solid.
It fills OK if you use a toothpick. IF the tubing is snug going through the tip, the tip can be reamed out slightly. X-acto knife worked well.

There are two varieties of JB, the regular and JB Quick. Auto parts/big box/hardware etc..
The actual mod took around 15 minutes gathering the tubing & JB an hour or so with travel.

[akfreak]

Thanks fellas. I will let you know how I repair it

[akfreak]

I fixed it. It's amazing how complex this cable release is. The main problem you find us not having the proper crimp ends to hold the outer shield. Well I am glad to say its workingagain