Prosum, have you considered a variation that would hinge the doors on the rear, like the JD cab? Here's why I ask-
During the warmer months, the doors are going to be off anyway. In the winter, I expect that most of my trips in/out of the gator will be to change the manual angle of the plow, not move stuff in/out of the bed. Right now, I'm leaning more towards the Deere cab than yours because of that. But I like your glass vs. poly windshield on the Deere.
Best of both worlds- A simple arrangement to convert hinging front->rear depending on user needs/whim at the time. After all, i'm not looking for automobile-secure latching for a vehicle that's only used off road on my property.