Updated the design a bit and tried to create a workable case without any screws on the top panel.
Here is the Github, STL files included. As it states on Github, this is my first design, and as I don’t own a 3d printer yet this is untested as of now. Not sure if this works as designed, perhaps it will prove impossible to get the RPi into the case like this.
Obviously open to constructive criticism as this is my first Fusion 360 design (also have a Grid case on Github).