ive been looking for a ztr for some time now and have narrowed it down to a few choices. i dont want to go bigger than a 52" deck. a dealer in my area has a used gravely 250z with about 450hrs. on it. thats the 2 series their top models, it has a 50 inch deck with the 19horse kawa motor. they had sold it not even 2 years ago to a church in the area for thier mowing needs so i has never been used commercially they said it sold for 6500 and they are now asking 4800 for it. any ideas, comments?