Hi Ed thanks for your introduction and information. Pictures are fine, we like pictures unless they are X rated. As this thread falls behind newer threads, if you don't mind we will move your photo and introduction to a thread called " show your face " For my own model road I've taken a local shortline back to an era similar to your's.
In regard to the caboose, can't help you much there. What I do is build a model with a reasonable likeness of the prototype, it may not be exact but it's satisfactory to me. So with the razor saw some xacto knives, drills, photos and some putty I build what I think resembles the unit I "think" I'm modeling. So if there's no help forth coming for your caboose, you might try that.
Cheers Willis