It's not simple plug and play. There is some amount of fabbing required (IIRC motor mounts for one). I only know of one person offering to do the conversion, and he is tight-lipped with the details (because he charges for the expertise). You'd also have to leave your car in Grand Rapids, MI for an indeterminant amount of time.
It's definitely easier to go with the Taurus Duratec, so I'd say the Lincoln LS doesn't fit your needs.