Since you are a Belgian:
This is a dutch store that sells the combat survival kit and military survival tin. A good place to start.
http://www.countrystore.nl/Military items? You want to make a E&E (escape and evasion)kit?
On this site you'll find pouches that can be the container of you kit:
http://www.blackhawk.com/product_catalog.asp?cat_id=38&d=Welcome
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''It's time for Plan B...'' ''We have a Plan B?'' ''No, but it's time for one.'' -Stargate SG-1