Noticed that on another group that Prototype Junction has announced their 1st Project. AT&SF Bx-11,12,13 and a RI car. These are to be injected molded, with spare parts availble
Here is a link to their site for more info.

https://www.prototypejunction.com/2019/12/project-1-atsf-bx-11-12-and-13.html?m=1

George Toman 
Willow Springs IL