I'm considering buying a Walker MT 20hp: I have options of either brand new, or a mower with 450 hrs for nearly half the price. I live far away from the dealer and am not a mechanic so I'm thinking it may be smart to get a new one, hopefully more reliable. The used one they are selling either with a 42"bagging deck or a 42" Euro deck. I think I may buy a 48" later, what is the Euro for? Does a 25-26hp do a better job cutting than 20hp? Also, I live where it is wet with rain, dew, and because of this the grass grows very quick. (and is often damp) Is this the best mower for me in this climate? I do like the size and height of the machine. I appreciate any help on this. Thanks!