Picked up my N5B today. Really nice. The Cupola on top is actually Diecast. The caboose has some nice weight to it.
Here are a few quick pics.
Amended 9-15-15 Note: Just found out the manual states there is suppose to be a scale smokestack included you can switch out if you are not using the smoke feature. We have since learned that was never made. So the manual is wrong. We since learned again that some do have them and some do not even though Lionel says they do not exist. What a rollercoaster on this one, haha.
Also, My smoke stack cover had a broken Pin on it so check yours. The stack is pressed pretty tightly against the foam.