I'm about to purchase my first ztr. I have three yards to cut, 3/4 acre , 1 acre and one 3-5 acres with hills and terraces. I have been looking at a few mowers and these are what I have come down to. I'm trying to only spend around $5000. Gravely HD w/52" cut ($4899) and Exmark pioneer e-series 52($5400). They both seem close to the same except the gravely has the zt-3100 transmission while the e series has the zt 2800. The other one I like is the exmark pioneer s series 48" cut. It looks like the best but it is $6500 out the door with a free generator. I would appreciate any information.