I'm glad some people are still replying on this thread.
Since my original post I made some changes to my survival tin:

-The utility knifes have been replaced by scalpel-blades.
-The 'waterproof' bags are replaced with a single Ziplock.
- I managed to add 3 meters of cord to the kit.
- also added a P-38

The ''signal mirror'' isn't replaced because a propper one is to bulky for the kit and because I also carry a small mirror in my EDC.

I have also made another survival tin, with similar contents as a birthday-present for my dad.