This is a good model to show off various aspects of Techdraw overall. It is simple enough to understand readily, but complex enough to show important features. That said, I think if the aim is to show off TD here, it would be best to use one of the paper templates: those are a marquee feature of that WB.
I wonder if example files are to be completed that
at least the drawings are complete to fixed standards
, e.g. BS8888, with typical dimensioning for the item
and features. Also include the ability to show in both
1st and 3rd angle.