To turn the car into the standard NYC car you’d need to replace the N&B’s 3-panel door with the reinforcement plate with the standard NYC three panel door or an appropriate NYC Youngstown replacement door. The only other modifications N&B made to the standard NYC cars were a protective plate over the pipe bracket which would be as simple as finding a standard AB pipe bracket replacement.
The N&B had few online industries other than Atlas Cement so seeing the car out your way would be almost as rare as us seeing a Mason City and Clear Lake car in Northampton PA. :-) (Other than during WWII when N&B cars were free roaming)