How capable are smaller riding mowers of towing a roughly 400 lbs load in a lawn cart across flat ground? I move firewood across my yard in a cart which I move by hand. It's quite a workout and I wouldn't mind some motorized assistance. I only have 1/3 acre to cut for grass so I'm not in the market for a big garden tractor. My parents have a 30" rear engine rider they only mow with. Could something that size do the job? I see that most of the small riders are hydrostatic transmission, while Snapper is disc drive. Are either of these capable enough for my use?