I am looking at buying a 1420 an older lady has near me. The combine has about 2700 hours on it and looks like its in good shape. No leaks or wear that I could notice. What size grain and corn head could this machine handle? The front tires have some cord showing so I know I'll have to replace them soon, but what do you guys think it would be worth buying. It's got both heads with it but the corn is a wide row. I'm not sure what size the bean head is. What do you guys think about this combine on an overall viewpoint? Thanks guys.