Karl,
You are probably right there. I do like TrainWorx products but this truck/trailer build is sort of like my AC-9 bash job in that it is a challenge and I like to meet a challenge head on for completion. It is sort of the old fashion way of modeling. I probably will end up spending more $$ on this than what a TW model will cost, but plenty of fun will be provided.
Most important thing is to have fun,
Carl
PS: After looking at TW web site, I am not sure that we will ever see most of their announcements,
especially the detail parts for tractors and trailers (due summer '18). Oh well, we can hope.