Ephemeranow.com which has some beautifully cleaned up Imperial adds on view is taking donations for there new scanner.
"For every $50 you chip in until the end of April, you'll get the large-format print of your choice (24 inches by up to 36 inches, U.S. or Canadian postal addresses only; $55 for Canada) from our available stock of high-resolution images".
If you haven't seen the stuff on the site its a beautiful site and I think well worth the investment considering what is offered.
all the details are on the site http://www.ephemeranow.com/misc/printerproject.htm