1) Forgive me, I'm not a rocket scientist. What components/base materials are you looking for?

2) A scooter is probably feasible. You said motorcycle, and I can't think of any motorcycles that are electric? But scooters are. He'd have to put it together again and charge it in a place that does have electricity, yes. Probably somewhere someone is living, so he can know that the wiring's been checked and won't blow him halfway across the house or something.