Ah. That's an interesting connection, and one to be proud of!
My only connection is that there was a photo of the brakevan in the Modeller once, related to a review of the book which is classed as a magazine "special issue", and it formed the basis of my first scratchbuilt wagon body, in 40 thou plasticard with paper (embossed from behind with a ball pen to produce "rivets") ironwork. It was nominally 7mm scale, on a Triang-Hornby wagon chassis, and trundled along behind what had once been an H0 Mehantehknika diesel switcher, which had been fitted with a new cab - more 40 thou plasticard, plus some wire and tissue paper to represent an open cab. That was my sole narrow gauge modelling experience for many years. Sadly, I didn't keep it, but memory suggests it was mostly OK.