I replicated CP rail 5648 SD40-2 with an HO scale Kato undec. I heavily modified it with a cannon and company cab, battery box base, nose, radiator and dynamic fans, long hood end, blower housing, fuel tank detail kit. Railflyer provided the brass pilots, operating levers, scale coupler pockets, traction motor brackets and cables, lift rings. Miniatures by Eric supplied the control stand, horn, low bell, steps, re-railer, head, tail and ditch lights, Details west the mu hoses, hose bags, air line plumbing and step light.
I painted it with Accupaint, utilizing color modulation techniques. Weathered with artist oils and mineral spirits, MIG pigments and Floquil paints.