I'm new to the forum and never had a diesel but am looking into a 1997 f-350 with a 7.3 it has 205,000 on it and some 35 inch tires it looks real nice and he wants $7800 is that a good price or not really and would anyone have any idea what kinda mileage it would get cause I'm tryin to get rid of a 96 f150 that only gets about 13 to 14 so would it beat that or not really any help is greatly appreciated.