Great Glad you got it going… Should have come in sooner 
Those MMI displays are not really maker friendly, there software is wonkie, but good enough for a basic display. I still prefer the LVgl stuff on any TFT_eSPI compatible screens though, not the proprietary stuff that come back to bite when you finally get the scope of the requirements nailed down.
In steps E-ink for the save… It’s the way of the future in static displays. Supports the sleep stuff very nicely so NO impact on power consumption only on when active and wakeable with IMU… 
but looks always on…
GL PJ
and let your friend know, their always welcome here and we like to tech a person to fish instead of hand them a spoon. 