And the simplicity of using N scale locomotive mechanisms to model HO scale narrow gauge equipment ... but that's not at all necessary. HOn3 track and trains are commercially available.

The set originally came on a quasi-ballasted track with a gauge of 16.5 mm and was described as H0, or "Half O." The earliest ...

The main challenge here was the extremely limited space available: the track ... HO scale – perhaps something similar would be a neat companion project to [Vassily98]’s camera train.

It might have been a while since you thought of model trains, but it’s still a hobby many enjoy from childhood into adulthood ...