I couldn't believe my eyes when I weight it: roughly 7kg/15 Lbs (without food and water;exept 1 liter emergency water)!
That's like the lightest kit I own exept PSK and EDC!!

I'dd better put a brick in the bottom to prevent it beeing blown away!

But seriously: I now have enough spare room in my backpack for food and clothing and narrowed the kit down, wich was my original goal.
Thank you all for your suggestions.(pics will follow)