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It most of all depends on the upper rail setting you need for your lens. URS = upper rail setting max setting for NN3 is 106,5 mm. For NN4 139mm, NN5 149mm. The kit-lenses like 18-105 or 18-200 need URS around 104mm. Then it depends on weight.
Our friend DennisS has used his D300 with Sigma 8mm on NN3, similar weight to your lens on NN3. So it might work with your lens as well.
I tested my D300 on NN3 with different lenses. It is at the border line for some combinations. So as Nick, I would have tended to NN4 which I have as well, just to let you know I know what I am talking about. Anyway. Test LRS = lower rail setting 55mm with Nadir Adapter or 61mm without. Different Nikkor 18mm -xx lenses start around 104mm URS. 17-55/f2.8 is around 123mm. So you can realize, it can change a lot.
Let me know if you have problems and I'll try to find a work around. A "cheap" alternative to your lens would be a 8mm Samyang/f3.5 AE with the new Nikon microchip around 300€.