Have you tried their web site?
The F2000 assault rifle was developed in Belgium by Fabrique Nationale d'Herstal.
You will have to contact FN to find out.
100-1000 USD or more depending on specifics
No sn data in the public domain that can answer your question.
Depends on your pocketbook.
No way to answer without a description of ALL markings.
Blue Book of Gun Values
100-1000 USD or so depending on EXACTLY what you have and its condition.
100-1000 depending on the specifics
Fabrique Nationale
Fabrique Nationale d'Herstal
This is the Belgian firearms company Fabrique Nationale