OK,
The Slag Train engine is 031. The Sante Fe 2174 is O31. I need O27.
Were there any docksiders made in 027?
I am happy to have one that is AC if they are better than ones with DC motors. I run my AC engine on DC powered track because it runs much much smoother, particularly at low speeds.
And, I have no idea what a saddle tank locomotive is. :-)
Thanks for extra info.
Thx,