I have a 1992 1660 with 1875 hours on it and am going to sell it. It has been serviced well and waxed at the end of every season. It has the following equipment: Air ride seat, New 24.5x32 Firestone tires, Specialty rotor with Gordon Bars, Gordon Helical Concaves w/ Cover Plates, Airjet Chaffer with medium and high yielding corn inserts and soybean inserts, Crossflow Fan, Chopper, Vittetoe Chaff Spreader, Inclined Delivery Auger, Bin Extension 245 bu. +/- This machine is in excellent condition and has the following service work: Stainless inserts in the grain tank, new augers throughout in the past 2 years, bearing update on the front of the trough augers, new unloading tube. What is a machine like this worth?