I have a 2002 Exmark Lazer Z HP with 48" deck and 20 hp Kohler. Also have "Director OCDC" and mulch kit. This mower only has 187 hours on it and is in excellent mechanical condition. What would be a reasonable price to ask? I want to sell so I can get a 60" for a large job I was just awarded. I have a figure in mind, but would appreciate your inputs.