I am looking at a used 2005 Toro Z420 with approximately 80 hours on it. I have about 1 acre of mainly flat grass to mow. The seller is asking $1,500 for it. I have done some research and it appears that the Toro timecutters don't take abuse well, but would be plenty for a homeowner with my size yard. Does this sound like a good deal and will this mower be enough for my size lot?