If i were you,,, i'd buy a wrecked F150 and pull the whole works out and do the transplant,,,tranny mount,
engine mounts,computer etc.( do not use the hydro elastic engine mounts,,they are nice for vibration dampening but they suck when it comes to allowing too much flex in the driveline, use the older style solid rubber mounts) my brothers 96 F150 is in the shop getting painted as we speak, cherry red with silver two tone,,,i think he cares more for his truck than he does for his wife,,,,just joking.