I was browsing Craigslist, as I'm thinking about getting a walk behind (32" or 36"). Right now I only have three yards to cut including mine, and it's the largest at around 10,000 sq/ft. It just takes forever with my little 22" push mower. I found a 2000 Scag SWU36-15KH with a 15hp Kohler Command Pro. The guy said it's complete and ran fine until this past fall when "the rings went out and it started smoking real bad". He said the carb also needs rebuilt. If I'm reading his Craigslist ad right, he only wants $150 for it. Should I even bother? I tried Googling this model and all I can come up with are parts diagrams from online parts sellers. Thanks in advance!