I have 2009 Exmark Quest 42'' with a B & S 20hp with about 50-75hrs. And today between yards i saw a walker for sale on someone else's trailer, so i stopped and asked how much? It's a 2005 walker GHS 42''(don't know engine size, but i think at least a 20hp). It has a new engine and blower system with a one warranty from the local walker dealer. He want $4000.00 cash. Whats do ya'll think??? Worth it??? I would have the sell the exmark to get it, but i already have a buyer. Also Well this be ok as my main mower for all my yards bout 10 aweek and growing.