I have very clean Cheetah I want to sell and replace with a Turf Tiger..I have the 31 h.p. Kawasaki air cooled engine on the Cheetah that has been trouble free..I either want the diesel, the 31 h.p. liquid cooled Kawasaki or the 35 h.p. air cooled Briggs on the Turf Tiger..The larger Briggs is...