I am looking at a couple of Exmark mowers, and need to pick one for my property. I live on a somewhat hilly piece of land, (3-5 acres to cut with more coming), with a couple of 20+ degree slopes, one of which I can mow side to side, but the other > 20 deg I need to go up and down. I would like to get the Exmark Next Z with the 29hp Kawasaki and 60" deck. I may want to put a bagger on it in the future if I can find one used. The other consideration is the 34 HP Kawasaki. Is it really worth the extra $700 or so? The only other consideration for me was the 27hp Kohler, and I like the Kawasaki engines a little mrore. The Lazer Next Z with the Kawasaki in my area is going to cost me $9990 which the 34hp will be $700 more. Are these good prices? If not, where else should I look?