Had several of these about 3-4yrs ago, I even got to drive in one. Unfortunatly it was a IH 915. Had one hell of a good time destoring a combine of the other color haha!!!
lind Washington has had a Combine demolition derby every summer for quite a few years. Got a scare last year when one of the combines got knocked over and the driver got dinged up a little. Some hillside combines are used in the lind derby and they are wider with bigger tires which changes things a little. Check the towns site for a few pictures.
One comment from our local state legislator that runs in the lind derby regards the rear end. look for or make yours narrow. It's the first thing guys hit, and a wide rear end (combine's) is easy to break off. FWIW Art