VQD

This question serve as technical foundations for my brick-built track system, so I'm asking here. Please note that I only have Stud.io to work with at the moment and can't test anything out in real life. I want to hold the blue plates in place at the precise angles and positions seen in this image, but without using the R40 curved track itself. I'm currently looking for any "legal" ways of achieving this goal using hinge pieces or Mixel joints and have surrounding structures and potential baseplates to hold the whole thing in place. After some tinkering, I have came up with the following assembly for the inner side of the sleepers. Note that one end of the assembly is more inset than the other by one stud: Do keep in mind, most of these are still not tested IRL, as I do not have the means to do so, therefore can any of you confirm if this assembly works or is even legal? If not, I would like to hear some suggestions, preferably legal building techniques that don't involve tubes. Thank you very much.

Hello fellow brick enthusiasts! I'm an AFOL (I think I am?) with too many ideas and not enough focus for my own good, all of which are minifigure-related. But I do have a train-related idea that I figured to share here: a wholly brick-built modular 7-stud wide track system (the kind that's compatible with the Hogwarts Express Collector set). I don't know where to start with this idea, so responding out any resources or links on calculating curve radius and how track sleepers work could make a good start for my venture. Looking forward to being more active around these forums.