A simple 2 3D printed part design.
Front display assembly frame and a back shell. 

1. The 5 inch DSI touch screen ( [https://www.amazon.com/dp/B0CXTFN8K9?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1](https://www.amazon.com/dp/B0CXTFN8K9?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1) ) mounted (up side down) by sliding into the front frame.
2. At this point it is a good idea to flash and insert the SD card with your preferred OS into the Raspberry pi now as it will be difficilt to remove after mounting.
3. The Raspberry pi board can then be mounted with the included standoffs and screws to the back of the screen module. 
4. Now the Screen can be connected to the raspberry pi using the included ribbon cable. 

5. The case supports space for a “normal” height HAT module. 

   I personally used a raspberry pi 3 together with a digital audio interface board like shown below

   
   
   This fits fine in the case - but your mileage may vary. 

6. Now two M3 heat inserts can be inserted into the back shell part. 
   here:

   

7. Now the front frame assembly can be mounted into the back shell by sliding it into the back shell and using 2 M3x20 screws from the front to close the unit.

8. Now you can mount on you wall or put some feet on the back and place it on any surface. 

   The shame angles the screen slightly to make it easier to use. 
   Note the orientation of the screen - as you may or may not have to modify you screen orientation in what ever software/OS you are planning to use.

9. If you want direct acces to Ethernet and USB ports I have included a version of the back shell with a hole for accessing those.