Thanks, chaps, I don't recall seeing much of the high-viz stuff in the 80s, nice to have my impressions confirmed.
Brian, in my book you can't have too many 26s, go for it, the memory of 26024 blasting up to Ravens Rock in 1981 is still very strong. The only thing I can see missing from the Heljan model is a large circular vent on each cab roof, it's clearly visible in the shot I posted several pages back. Fortunately, the overhead shot I have of 26029 in 1981 shows it didn't have them then, that's why I chose it. That and the fact that it didn't have spotlights so saved me a bit of work ! All in all, it's a lovely model, so much easier to work on than the 37 and 47, no wires trailing everywhere to marker lights and tail lights, and much easier to access the screws holding body to chassis.
Opening up another can of worms.......I don't seriously see Heljan ever doing a 27, I might consider doing a 26 to 27 conversion. Any thoughts ?
Jeff