Tractor Model?

Hello, I was hoping for a bit of help. I was wondering if anybody had a good quality model of a tractor? Specifically the layout of the linkage on the back, and the PTO. I've been asked to make a small machine which would drive off the PTO which the operator could simply reverse up to, hook up, and drive away. Any help would be appreciated. I'm on an old version of SW, so maybe in IGES/ACIS type format. Brian