I am going to make a case or box to fit the display, CPU and batteries. I started with the sales datasheet for the module and found that they are missing some important dimensions. Next I looked at the datasheet for the display and found it does not relate to the module. The task of creating the enclosure is difficult because of these two items. So I thought I would print a mock case. Having no sides seems the best method to see the topography of the module. It worked because I found the display has some high areas, that are not immediately obvious until it all snaps together.
I made pins to friction fit in the holes for mounting. When I checked carefully everything was good except, I had the display window opening, up and to the right a bit too much. I adjusted the CAD file and will print another one. This one will have more height around the display’s long silver bar on left side, a narrower wall between the switches and the display and the window opening spanning further to the bottom left. I had a go at trying to modify the opening with a knife but realized it was too much. This can be seen by the small black box in the top left of the screen.
Once the case has been proven, I will add the sides of the box. The module is meant to work with as a Raspberry Pi Hat. Using an E-paper display should be used with something that will not draw several Amps, (unless there is a specific cool factor) it should be something that is low power.