i have a ford 302 looking to upgrade it. i have some expereance. but i know this is more than i can do. here is what i want out of it. some where around 340hp. if i take to have the work done what would be a ball park price. mostly a dd and some offroading. some more spects 84 4x4 f150 c6 trans. transfercase ?? (stock) 410 gears 35" tires