Yes, plastic tape is available in 2" width. It could be found at any hardware store.
The two stripe scheme could be added pretty easily for temporary use.
Not a bad idea, Kev. It would be pretty easy and inexpensive to do that, but could you be happy with black trucks? I can't see the RR wanting to paint the trucks and undercarriges silver, but who knows? I think I could live with black trucks, and the two stripes would sure look sharp with 473's scheme.
You are a troublemaker, indeed. But maybe someone will pick up on your idea.