A set of M&R N-Scale brass car sides (Pullman Standard 8-2-2 Sleeper Car) are installed on an N-scale donor passenger car made by Rowa.  This particular sleeper car is not made commercially so it would have to be to be created either using brass car sides or plastic sides. I chose the brass car sides. 

This sleeper car was used by the ATSF during the transition era for a few years from Chicago to Tulsa via the Texas Chief (which I model), the Oil Flyer (which I model), and the KC Chief (which I don’t model). The interchange between the trains took place at KC Union Station (which I model). 

The video shows the general techniques and tools used to create the ATSF 8-2-2 Sleeper, named Segatoa. There are probably other ways to do the conversion but this is how I did it

Modeling the ATSF Paradigm Division in N-Scale 

https://www.youtube.com/user/tanzj