I really wanted the diesel -- till I test drove one. Its just too slow to accelerate and top speed is limited. I bought the 825i, with sporty seats, electric/hydraulic dump box and power steering. The thing will work! And its a blast to ride around in too, great suspension, top speed at 43 is faster than two people who are talking want to go.
Power steering a MUST HAVE if you think you might ever put tracks on it. Power dump box a real pleasure, and your wife will love it.
One thing I wish I had, and applies to either the 855 or the 825, is the actual glass windshield with small area at bottom that hinges open. The plastic windshield gets dusty of course, then scratched. And the plastic half windshield mounts low close to the hood, so acts to draw gravel road dust into the cabin down low. I think the glass windshield, with openable area down low wide open, would have air flow-thru to avoid a lot of that dust drawn in.
Get a couple test rides, your opinion may vary.
Also, be aware the the seats are quite adjustable and will not necessariy be set back as far as they can be, when you test ride or buy new. If you feel it should have more legroom, study the seat mounting and re-attach the seats accordingly. There are multiple holes, etc. I moved the passenger seat back three inches and up 1.5 inches (raising it was done with two short pcs of 1.5" square tube put between the seat pan and the bracket, with longer bolts -- very easy to do), so it now matches the driver seat when it is full-back position. This greatly improved the passenger foot and leg room.