i am possibly buying a tt23kc this afternoon, the exmark tt manufactured in 2000, FMD603 60 inch deck. It has a blown (cracked block) 23 hp kohler. Asking price is $350. Hours unknown. I am considering purchasing with hopes to get it running and use it. However i can not find many reviews on this site or the internet in general on the mower or deck. Is it worth my time to try to get the mower running with a used engine. I figured i could part it out to get my money back if i dont get it running. Side note- i did read that the 23 hp kohler still lacks a little power, should i look into a 25hp as replacement?