Redshift,
As Will said the tipple is scratchbuilt. The base structure is 2 ply chip board with 1/4x1/4 bracing on the inside. The outer skin is JTT, Plastruct and Evergreen styrene siding in various configurations. The windows and doors are Tichy castings. The base columns are Evergreen H sections. Tacky glue and CA for main assembly. Goo for attaching the siding. Testors liquid cement for styrene to styrene.
The slack tank is a base of PVC pipe with more styrene, etc. added.
George Lasley