Though not strictly a "flat", its hard to resist this challenge. Operationally it makes a train of its own with couple idlers.


Again, the start point was an MTH product. The basic sections were pretty nice, so new details like brakes, the hydraulic systems, a few stirrups, lower the whole thing, much the same work as that MTH salamander I showed earlier except a lot more.
OMI made one, but they go for pretty stupid money. I often think I'd love to have one but, once the crews set to work in an ops session, the origins tend to disappear from the mind so long as the piece isn't visually jarring in some flaw or another and it does its job.