How much is a F2 Nikon worth?

I found a Nikon F2 + MB-2 Battery pack and the motowinder ( the thing that does many pictures in a row).

The F2 was released in 1970.It was a very good camera in it's day. Value will depend on condition & how well it works. What you have is probably worth around $200 if they're in nice condition. It's a camera worth having if you're into 35mm.