I found a sweet deal on a clean cougar. No rust anywhere. The problem is that it is or was a 5.0 car. I have a low mile PI 4.6 engine and trans in my garage. How feasible of a swap would it be to drop that into the car? I know I'll need some 4.6 specific parts, but is it worth messing with or should I keep looking for a 4.6 car?