From zoo sandiegozoo.org Rentals: Strollers, manual wheelchairs, and electric scooters are available for rent on a first-come, first-served basis near the entrance. Prices: stroller single, $14; stroller double, $18.
Yes they have power scooters, $55 for the day. Slowish but they will get you to most everything.
Yes
Yes. I saw some people had rented power chairs of some kind when I was there last week but I don't know what the cost was.
Yes they do have power chairs with shade mounted on the chair. Not sure on the price but i did see them around the park
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