.
...if you are really attached to that crank set (and who does not love Stronglight cranks ?),
you can buy one of these or look around for someone close to you who has one. I have one, but they don't work except in person.
It's a solid tool, like everything Stein makes and sells. It's paid off for me, but I used to work at the co-op, where people regularly stripped nice cranks. I got tired of throwing them away.