I've been using the Mauer for the last 2 years on harvest and I couldn't have been happier. They were easy to setup and fold down. I got to the point where I could do it in around 5 minutes if even that long. Never really had any trouble either with them.
I second that on Maurer extensions. I would not go with the largest ones because of clearence problems. Hope you have big tires of the back end or 4WD axle for added strength. My 9600 has seen its fair share of new rear end parts due to added stress of extensions.