Great job, as always, Smoke. But I gotta ask...
How did you do the orange striping on the ends? I have a GP30 shell I want to paint in that color scheme, and I can't decide if it will be easier to mask and paint the stripes, or try to use a decal from the Microscale decal sheet. Either way, it looks to be a PITA - especially with the Mars light, marker lights, grab irons, etc. all over the front and back.
As for the modern fallen flag & GE loco thing - it would be plausible if the company retained the Rio Grande roadname after acquiring SP, instead of changing themselves to SP. Then they would have to have repainted all the old SP stuff in Rio Grande colors. Now wouldn't
that be cool?