This model has custom designed and printed decals. Number boards though small, have the correct style number board. Here's the real thing in Roanoke.
You've built yourself a unique and really nice engine there! It's looking mighty good. You might get a spot of gold paint on that brass bell. It's a tiny detail, especially in Z, and most people would say it isn't a big deal. And it isn't. But as someone who was there, I remember that these Bicentennial locomotives were symbols, and creatures of their time. And at that time, the Liberty Bell was probably at the height of its popularity. Images of it were literally everywhere back then. There's definitely a reason the N & W left that prominently placed bell in natural brass, and kept it polished!