To get this project started I have built an inital proof on concept using off the shelf components. This version uses an adafruit 7in tft display and hat along with a modified pi POE hat (the i2c lines to the fan controller needed to be cut as they are used by the display). The photo below shows the setup running a simple magic mirroros setup. 

This setup will allow me to evaluate weither the project is usefull enougth to design and build the integrated version and to confirm if the current display will work ok (the vertial fov seems a bit narrow so might not work too well in a vertical orientation).