I looked at at used Exmark Lazer Z today. The guy financed the machine for a family member. Turns out that family member isn't paying the monthly payment and its brought the guy's credit down a lot. He is selling the machine off for what he owes. It has a 26HP EFI Kohler and a 60" deck. The machine is a 2003 and it has the ultravac tripple bagger on the back. The machine has 790 hours on it and hasn't moved since the guy finished with it last fall. He claims maintenance was performed regularly but I am a little unsure even though the blades are sharp. All in all the machine was in good visual condition, doesn't look like it was abused to bad.Is this a good buy for $6000?