The manifolds might not even match up. I'd check that first before anything. I don't know if there was a difference on those between the 2.0L and 2.4L.
Honestly, this is a time old question that people ask such as, how can I turn my 2WD truck into 4WD?
Honestly, it'll take you more time and money to convert it all over than just buying an SRT-4, or doing a complete drivetrain swap with everything you need. Trying to mix and match will give you headaches and an empty wallet.