How many electric riding chairs are there?

They have many. Get there early to make sure you get one. Should not be a problem.

just was there this weekend and was told they run out about 10:30

Ample chairs, sure they have outside vendors as well if in the event they ever ran out.

Not sure, however they will get one at the park if they run out. Never heard of that happening. Services outside the parks can deliver also.

There are plenty. Guest services will be your best stop.

Usually enough even though its first come first serve

Enough.

Alot!!