Assuming it has a 54C mower and is in really nice shape, that tractor should bring $6500-$7000 pretty easily. I had a 485 which I sold to buy a 595 (which I also have since sold) that had 188 hours on it and was in great shape. I did not have a bagger on the machine. It retailed for $9999.00 at the time and I bought in a cash sale for $8650.00. I had the machine about one year and sold it for $7500.00, but I had a buyer who really wanted it. In most cases, I would say expect around $500-1000 less, but you might do just as well as I. $4300 is a joke anyway you cut it. If I were the Kubota dealer, I would have been ashamed to even say that absurd a number to a customer.
John M