About the dual display, I started a thread on the Technomad from the 1980s --
ecomodder.com: A old school story from the 1960s
He used a recumbent bicycle with a trailer. Rethinking it today a reverse trike (like the Arcimoto MLM), the dual USB-C powered dual display and a Pi 500 running on USB-C would be a good start.
What else would you want. A train of these?
https://external-content.duckduckgo....76a&ipo=images