We are getting married in late June, in our backyard in the afternoon. Our brief ceremony will be under the full shade of some large maple trees and we are planning to set up a large tent for the reception. This will obviously be miserable unless we have some portable ac. Does anyone have any experience as to what works and what does not work in this situation? The closest AC rentals are over an hour away so we've even considered buying 2 units instead of renting. The tent will be 30ft x60ft.