Okay here is what I have so far. I haven't done the visibility state thing yet, but this works pretty well for a lot of what I do have. I wrestled and wrestled with trying to get all to work with a flip parameter, as in the standard lesson, but something I was doing was making the jamb opposite the hinge move farther and farther away (by some multiple of whatever length the door was) with each flip and flip-back etc. Oh the rest of the lines stretched along with it okay, but it was just behaving incorrectly. For now I can just manually mirror it, but I'd sure like to figure out being able to make it flip and scale properly. If anyone has any ideas I'd sure appreciate it. In the meantime I can play with that whole visibility thing for the jamb types....
I hope my info was useful, but if by some odd chance it actually solved your issue, feel free to mark your post as "Accept as Solution". Thanks! 🙂