I'm looking into buying another maintenance company and their equipment. They have several mowers that I'm not to familiar with and what they are worth. What would you buy these mowers for? 1. 2006 Exmark Navigator 27hp 1,350 Hrs 42"deck 2. 2008 Exmark Lazer Z 23 hp 382 Hrs 48" deck 3. 2010 Exmark Metro, belt driven, 15 hp. est.100 hrs 36" deck 4. 2007 Kubota ZD321 Diesel, 21 hp 747 hrs. 54" deck Any help would be appreciated. I haven't had any Exmark or Kabota equipment as so far I have only run Walkers and Toros so I'm not sure what they are worth. Thanks.