Some time ago I picked up a couple of Hornby barrier vehicles. My aim was, and is, that one day I’ll put an Isle of Wight 1938 stock set in the current livery between them to haul around the layout as if it’s going to or from overhaul.
Perusing the world wide web I decided an LUL battery loco would be a good compromise because I could build it out of a CDC card kit and some bits and bobs in the spares box for next to nothing.
Now at this point you’ll point out that a battery loco has conventional couplings so doesn’t need barrier vehicles. That is quite true. However, when going on some journeys, extra vehicles are often put in a rake to improve the braking capability to enable the train to achieve the required sectional running times. So there is my excuse. And I’m sticking to it.