Ive been looking for a powerstroke on craigslist for about 4-5 months now with no luck or deals, but this 07 showed up, the guy wants 5500 for it, the only thing it needs is a head gasket otherwise it runs good, and i figured if i could do it myself, 700 bucks for parts, and 60 or so hours, but i only know basic mechanics, and have no idea how hard it would be, otherwise i heard parts and labor would be around 4000 bucks, but 5500 with 4000 in parts and labor is 9500 which is pretty cheap for a 07 powerstroke, but im not sure what else could be wrong with it, he says its just a head gasket, heres the ad by the way. 2007 Ford F250 Diesel