So I am looking to buy a 2003 yukon denali with 197k, the guy wanted 8500 for it i got him to 7800, is that a good price for the mileage?The vehicle drives well and seems well taken care of.He said trans was replaced by previous owner but has no documentation to prove it.Interior and exterior looks excellent but i am somewhat concerned about having any trans issue with that kind of mileage.what do you think?