The Loco is a Mantua, one of the 2-6-6-2T's that were standard gauge versions of the 3'gauge Uintah railroad. I removed the square tanks and replaced them with the wrap around tank from a Model Die Casting 0-6-0T. The loco cab is also from the MDC.
A very similar engine was used by the Feather River Lumber co., and Weyerhauser also had a similar engine. I used photos of these to modify the Mantua. I also used a considerable number of brass castings to "dress it up".
Sorry, it's not for sale, after all, it's articulated.
Pete