Hello, just registered and wanted to get everyone's opinion on a mower I'm going to look at this weekend. I'm a new homeowner with appx 2 acres to cut, which I'm currently doing with a 21inch push mower. I want a walk-behind because I'm contemplating starting a small mowing business next spring on a part-time basis. My community is growing at an astounding rate with many developments. The normal yard size is 1/2 to 2 acres. The mower is a 60" Exmark Turf Tracer hydro with a Kohler 18hp. The mower was used commercially and has 1200hrs on it. I do not know exactly what year the mower is. So I have the following questions. Thanks in advance for answering, the folks on this site are very helpful. 1. What is the normal life expectancy of a commercial engine on a walk-behind if well maintaned? I'm on a limited budget and want something reliable. Is this the ticket....or too many hours? 2. Is a 60" too big? I've used a buddy's 50" Gravely gear drive wb and loved it. But is the 60" too much for the main mower of a one man business? 3. Trailering: Is the 60" gonna be too big to trailer on say a single axle utility trailer? Let me know what ya think. Thanks Again!!