I am looking at a used (2001) zd 21 with 420 hrs on it. It will be for home use only. I have one property with 1.5 acres to cut and another (new) property with 5-6 acres of lawn to cut. Is this the right machine for the job. What should I look for when testing this machine. Also from what I have been reading, it has the stamped deck, should I be concerned about this? Any feedback would be appreciated. The dealer is asking $9,800. or $6,538. U.S.