Thanks for posting this Gary. More people need to watch this to get an idea of just how involved the production of trains really is.
There have been threads here by experts who claim it should be "easy" and "not too much trouble" for the train makers to "simply" change one model to another - as if requesting train models was akin to getting a customized burger at the drive thru window.
NO, it's not easy, nor inexpensive. And this is just the painting process... not altering the tooling and dies, which is even more complicated and costly!
The article in the OGR magazine years ago, A Visit to Sanda Kan, explained how cumbersome and expensive just the painting process is. This video illustrates the process in a way the magazine article could only leave readers imagining.
And again, this video addresses the painting and decorating processes ONLY.
Engineering a new model (or a minor change to an existing model) tooling and die making is another entirely different and far more involved and costly procedure.
Good find Gary and excellent video posting. The processes shown here are not just limited to Weaver. It's similar with the other train makers regardless of location.
