Irvingj,
A picture is truly worth a thousand words. Now that I've seen what you're up against, I will take another picture with a tape measure in it that should give you a real good dimension on that right side.
Bobzap,
All of the soft panels are easily removed. The doors lift off, and the other vinyl panels are held to the structure with velcro. The rear is one big panel, once it is removed, the rear is wide open. The only "panel" that doesn't come off easily is the glass windshield.
I have not removed the rear panel and spun the seat around yet. As you know, the seat is higher when facing the rear. This may present headroom problems. When the weather gets a little nicer I will pull that panel off and try that seat position. I don't do lots of backhoe work, so if I have to crouch a little I won't mind. You're mileage may vary.
More to follow......