My neighbor has his 88 f-350, 7.3, 5sp, 2wd, single cab, long bed dually for sale for 2000 obo. I'm sorta in the market for something to turn my current truck into a trailer queen. would this truck have any real trouble pulling a 24 or so ft gooseneck with my truck on it witch weighs anywhere from 6500-9500lb towing in mostly NW ohio ie biggest hill it would see is overpass hill. also it would need to serve as my daily driver so what could I expect as far as mpg and is there anything I should look at as far as problem go with these trucks?