How much to rent the trolly?

I guess you can call it what you like, but it's actually a bus that has been retrofitted to make it capable of hauling a pretty good crowd. You can feed the creatures from the open sides. The bus can be reserved, but they tend to reserve only for a group.

I'm unaware of a trolley. They have a group bus which is $100 plus admission price for the group

I wasn't aware there was a trolly.