Where can I rent a wheel chair there?

Last time I checked it was 12$ a day rental, with a 100$ deposit that is refundable. Contact Guest Relations building in Town Center

Same as above answers.

Wheelchairs can be rented at Disney Springs close to where the Disney buses drop off and pick up. It's in the middle of the bus area.

Wheelchair, ECV and stroller rentals are available at the nearby Sundries location next to the Town Center bus loop

Can't answer that question for you