Im looking a buying a used 2002 Deere 4200 with 420 loader r3 tires and 60in mmm and 750hrs for $13500 or a 2005 Deere 3520 with 300cx loader r4 tires and 1500hrs for $15500. Both are in great shape but I dont know if either of them are a good deal?:confused3: As you can tell im a noob right now.