So I have continued with the display case and have added most things already. I have also started with the hinge which gave me such a headache I spent too much time finding a solution for my space requirements but I have decided on my current setup which should work well enough. And an important decision I took is that the whole hinge will be completely 3D printed! This could fail miserably and then I would need to revert back to a more simpler design with screws but if it works which I am confident it will then that would be really cool.