Update from me, I started working with this guy:
https://endless-sphere.com/forums/vi...hp?f=7&t=95067

Hoping to launch a product in the next few months. Its bluetooth and Talks to Sevcon and Zeva BMS right now, and displays on Android (program called Torque).

Also paid for my own custom 5" LCD development from a local company that is going to be a nice standalone solution.