A couple of years ago I bought an 850 from the original owner's widow. It had less than 200 hrs. on it. It has a front end loader and turf tires front and back. It has worked fine for mowing. Now I am wanting to plow and disk garden space. I'm considering buying new ag tires for the rear (and mounting them on their own rims) and adding rear weights. I would be pulling a small moldboard plow in fairly heavy clay. Has anyone had any luck using an 850 for tillage like this? Or should I start looking for a bigger tractor?