I was inspired by other forum member's interior upgrades and was wanted to try and build a better interior for one of my cars. I started with a K-Line K4690-15902 RPO car. In 1999 K-Line made a 15” compressed version of this 85' Union Pacific car. In the first photo you can see the aluminum shell next to next to the K-Line original plastic interior and a copy of the September 1949 A.C.F. plans for this RPO.
I started by removing the plastic K-Line interior, then installed a thin sheet of 1/32" basswood on top of the metal frame. Next, I installed floor planks horizontally and stained the planks a light brown. The interior dividing walls went up next.
Below is A.C.F's photo of the new #5901 RPO car as delivered to Union Pacific.
Now, here's a looks at the new wood floors and walls next to the original plastic K-Line interior.
The RPO workers and details were fun to add, but most will not be seen by the viewer as the train speeds by.
I hope this post helps others who want to upgrade your passenger car interiors. I'll attach a copy of the A.C.F. plans as an attachment.
To look at the other interior builds in this series click on the links below. They are listed in the order I run them on my layout: