If it was either AC or DC version wouldn't bother me. I am no rivet counter and many many aren't. Truefully, How many people would know the difference. As long as it is painted SP and the superstructure is darn close I'd be very happy to have an engine to run in the yard. BUT, I have seen them on the main line pulling freight in a big engine consist on the Beaumont hill I think back in the 90s. Was an interesting consist but power is power. Not trusting what some manufactures say about what they will do, having been disappointed over the years for what they say. i possibly buy any road name and paint it SP grey and tape off the ends and spray SP red. I don't see too many problems as no fine lines to paint, pin stripes, I'd be very happy.
Phil