Kickstarting the NFL book

I have opened an account at Kickstarter.com to fund research and necessary photo purchases for the book about NFL stadium history, "The Fields Where We Used to Run." I'm trying to collect $2,500, which would mostly go to purchase copies of old photos. It would also fund postage for contacting other sources and possibly some travel. I have 60 days...hope I can cross the finish line! (And there will be rewards for some donors!)