Cool, I am always looking for new scoots like the okai being used on the streets. Sadly spin pulled out from my friend's city but did left one tough futuristic scooter lying around without a battery maybe they have no use for it due to it being propritary and their interface is using ninebot or something (thanks)
Okay first is to do what they do: inspect the scoot, for any damages and determine if it is good to go,
Then repair the scoot through hardware, software if you have a degree in electronics and enginerring, get the right parts, like a KT controllers because hall wires are not the best. The battery determine if it has a c+, (is the output port is also being used as a charging port?) to take shortcut or replace bms or watch battery level when charging, figure where all the wires lead, install everything in the scoot and you should be good.
Also maybe for mines I might add iot capablities to my scoot to heavily deter theft.