I grabbed this out of a 914-6 few years back. It's original 914-6 tools, but incomplete. I think plyers and two wrenches are missing as well as both screw drivers.
The case is in good condition, the latches are nice and work smoothly. The snap is also in good shape.
Was in a 1970 914-6.
Given what complete kits go for, seems like $500 plus shipping in the ConUS is fair.