Barracks freight buildings

[Dempsey]

Where or how would you go about trying to find building plans specifically for the above mentioned. While I have a video of yard operations to draw from I don't know to what measurements to scale down from to begin building the structures.

Any help would be appreciated thanks

Chris 

[Galteemore]

What do the buildings look like Chris ? One way to do it is scaling up a basic plan using common dimensions such as doors or by counting bricks.