First let me say I'm a homeowner and mow apprx 3.25 acres. I have many small trees to mow around and the land is not all level nor is it really smooth. Our development is former farm land. I have two dealers that are close to me, less than 10 miles. I have priced the Toro Z400 21hp Kaw 52 inch deck at $7713 and the Ferris IS1500z 25hp Kaw 52 inch deck at $6999. Which of these mowers would be the best buy for my situation? I currently have a Scotts 2554 tractor that has a 25hp Kohler and 54 inch deck. It normally takes me 3.5 hours to cut the whole yard. I would really like to cut that time down with a ZTR. Thanks.