I'm very close to ordering a scag tiger cub. Am having a very difficult time choosing between the 19hp Kawasaki(48", $6,900) and the 23hp Vanguard(52", $7100). Mower will be used for mowing 2-3 acres of rolling sometimes rough terrain. Low/easy maintenance and reliability are key issues. By the way, am I doing an overkill with the scag? Is there another low end commercial mower that might meet my needs for less $$ ?