Half barrel keg needed in Pittsburgh

Every year I brew beer for a fundraising tailgate that my friend throws to benefit Children's hospital. Another friend of mine has a keg that he lets me use, but this year I found out that he traded it for a quarter barrel after I had already brewed 15 gallons worth of beer. I could trade the quarter for a half, borrow a half and return it in 3 weeks, rent one, etc.

Please PM soon, as the event is in three weeks.