Wow, Your TANK is identical to mine except mine is an LZ, lever steer vs SZ steering wheel steer. I had my choice of 54 or 60 inch deck, I went with 54, and now I'm kicking myself for not going with the 60, the dealer had a 60 all loaded up ready to deliver to me. I'm finding that extra 6 inches would not have kept me out of as many places as I thought, and the 60 would have gotten me done 11.1% quicker. The 27 hp Kawasaki has NEVER been at a loss for power.
How do you like your steering wheel? I had several jobs where I ran Bobcat skid steer loaders, with lever steering. I ran my TANK around my driveway for 5 minutes while the salesman stowed his straps he had it tied down with, He watched me a bit, flagged me down and said I should call if I had ANY questions. I was half way across the front yard when he pulled out of my driveway, I was done mowing in about 2-1/2 hours, took over 3 hours with 982 & 50" deck. I've mowed in 2 hours a couple times, new goal is 1-1/2 hours. I've got some clutter in the yard to get rid of to reach that .