Joined: Jan 2009
Posts: 44,135
Likes: 6,350
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Check craigslist. You might get lucky. And you might even be able to sell the bike when you're done. You might also want to post an ad on craigslist.
Check spinlister.
Also check the regional sections of bikeforums. Maybe someone will loan you a bike.