I think some Dakotas came with Mopar 2.5's - not 100% sure on that, but I've seen them transplanted from FWD cars as well. It didn't look too tough, like no elephant ears or anything like that. If you got the trans located, it shouldn't be too tough to get the engine mounts sorted out.

Don't the Jeep Liberty's come with 2.4L engines like are in the PT Cruiser and Neons? Seems like that would be a good place to start as well.

Clair