Ok heres the deal i got a 96 Mustang GT 4.6 5speed. Need a new motor, i have a hookup with somebody who has a brand new 99 4.6 liter motor new in crate. From pan to intake. What is needed to be swapped? Fuel, Computer, Exhaust?? Or is this a straight up swap? What about external parts like A/C, PS, Alternator...do they all match up the same? Let me know please asap. Im sure somebody has done this swap already. Thanks for the help