I picked up a Hartford “Hobart Estates” logging caboose from Pete Doty and thought the pics might be of interest. Ozark, which now owns the Hartford line, have the kit on their website but I don’t think they have re-released it yet. Our own Bruce C. did a version of it back in 2008 - here’s his build:
http://www.jbrr.com/logging.html

It came with a working stove! Well, maybe it smokes, but I hope it doesn’t produce any heat.

The interior is interesting. 4 sets of wires (!) to a single lamp - probably a voltage regulator hidden somewhere in there. The thin black wires come from the marker light - one is mounted, the other is in the bag. Not sure where the wires going into the floor come out - there’s no sign of them underneath.

Aha! I found out what the 2 wires going into the floor are connected to. The outer pair of wheels are quite shiny, and tucked away are a pair of pickups for the lights and smoke. They look like they came from an Aristo coach or similar.

Nice.

I am attempting to build a similar one in 7/8 scale.