In short.....yes, it's worth that, but I sure hope you've got some skills in vehicle repair/restoration or it's going to cost you a mint to have a shop fix it!!
The NL model is really rare which is the biggest reason it's worth that. If you don't have the skills, abilities or tools, you may want to consider spending 3-4K and get one that's pretty much done. Prices seem to be going up though.
I hate to see NL's get turned into parts rigs, but that would be better than it going to the crusher.
Mine was $500 and in nicer shape, but you take what you can get when it comes to NL's
http://www.datsunsnw.org/trucks/index.htm