This is a pair of coaches that I worked on and are now surplus. One is a standard Colorado & Southern Observation and the other a Combine that became C&S.
Both have metal wheels, and I installed metal railing sets. Both have regular height couplers though they are still truck mounted. The Combine couplers are Bachmann mounted on top of the truck tongue; the Observation has a pair of USAT couplers which are a little smaller. They do couple together (pic below.)
I added fall plates to the Observation, seams to the roof and I painted the clerestory sides green and the roof flat black.
The lights, including the drumhead, worked when I tested them while the roof was off. I found a very old crusty 9V battery in the battery box whch had corroded away one contact so I soldered it back - I didn’t check it worked! You might have to re-fix that.
Here’s the underside and a truck on the Observation:
No sign of wear on the wheels.
The combine was an experiment to try the Light Rail Products “duckbill” roof ends. They didn’t fit well, but I managed to make it work. (Full thread on LSC about the build.)
The metal wheels are solid, not the standard Bachmann plastic center/metal rim.
Combine underside and truck:
I did not test the lights in this combine.
The letterboard is an amalgam of half a board from an Accucraft C&S coach that I chopped into something EBT (I forget what,) glued under the existing letterboard. I tried to match the coach paint, so the whole coach looks a bit faded. I finished off the lettering by hand.
The roof has painters tape for texture and seams. Interestingly, when it is left out in the sun, a white line appears. I don’t know whether the tape is shrinking or what, but as soon as I take it indoors to paint over it, the lines disappear!
$45 for either coach or $80 for the pair, plus shipping. Paypal accepted.