There is a u-tube video of a fellow that made a mini jd 8870 4x4 and he is plowing with it at a tractor show. His cab is perfect scale to the little tractor . But he has to sit on the rear fenders and reach his hand through the window to steer the tiny steering wheel. So to keep it to scale isn't very practical for me to use to plow snow all winter . But his cab is the best true to scale one I have ever seen .
I have thought about a rops bar too and might do something like that.