Seems like somebody on here was discussing collecting AC combines some time back,  but so far I haven't found the thread.  Anyway, if you are into that there is a sale in SE IL next week you want to put on your schedule.  Sale bill is at http://www.topauctions24-7.com/upl/html_salebill/58599/68_58599.html

Here are a few photos

A few tractors as well