I am interested in a Case 60 XT that I found about an hour from me. A guy owns 4 of them and has offered to sell me one. He is actually selling all 4 Case's. He states he has a large fleet of Bobcats and wants to maintain only Bobcats. He told me today that I can come get the pick of the litter and choose any bucket from the 4. He has a grapple bucket, which is what I am looking for to move debris and trees with. They are 02 models and have between 2200-3000 hrs on them. They have demolition tires on them that he reports don't have much life left. How much would you think one of these units would be worth based on good running condition? He has offered to sell me one for 13k. Second, any particular weaknesses in this model that I might look for if I go demo it tomorrow. How would this unit compare to a Cat 246? Sorry for the laundry list of questions, but I am a newbie and ya'll have given some great advice in the past.