Caboose Servicing Facilities
This article describes these kinds of structures for the Milwaukee Road, the ATSF, and the Wabash. Includes photos and scale drawings.
The Transformation of a Caboose
The author found a Chicago & Great Western caboose sitting on a siding somewhere. Then a year later found that it was renovated, had its cupola removed. So, he decided to scratch-built one out of wood and styrene (includes information about how to bond wood to styrene). Includes prototype photos, scaled drawings, detail drawings, and some construction and completion photos.