I redesigned the original LCD cover for the Prusa Mk2/2s to incorporate an Octopi print server with a Adafruit touchscreen. There are two models (so far) in this Thing. One is for the Adafruit 2.8" TFT (https://www.adafruit.com/product/1983) and the second is for the Adafruit 3.5" TFT (https://www.adafruit.com/product/2441). I am currently working on the design for the Mk3.
The Octopi setups are a Raspberry Pi 3 running the Octoprint-TFT UI (https://github.com/mcuadros/OctoPrint-TFT).
Update 7/5/2018 I have discovered that this works just fine with the MK3 as is. The only issue is that it is not centered (due to the LCD connectors). I have tried designing new supports in order to correct the alignment, but I'm not having any success. I am going to publish it as is and if anyone wants to try to fix the alignment, please feel free.