$68k for a 95E sounds like an interesting price to me.   When did they start the E  models?   If there are 97 and 98 95E's in Texas, and we have a 96 75C, that doesn't leave much time for the D's.   

deenycrane, when you are talking about tractors with that kind of hours in that kind of service, I don't think there is any such thing as "average condition"  It's gonna have to be  inspect it closely and try to guesstimate how much it will cost to get it in the condition you want.  You can spend $20,000 real fast just on undercarriage,  and $35,000 would not be out of the question if you end up in a transmission or rear end.