Unless you can get the ECU from the SRT6 along with the engine and trans, you will probably flop with your attempt to swap them out. The ECU on the SRT6 is looking for the auto trans and I'm not sure how easy it would be to trick it into believing it's still there with a manual gearbox.

Also, the internals of the SRT6 engine are a LOT different. Lower compression pistons, and other primary engine parts. The Super Charger takes the place of the regular intake on the regular 3.2L engine. The ECU also controls when the Super Charger is working by way of an electric clutch on it's pulley. Just slapping on the Super Charger and Intercooler and a fixed pulley may work, but you may blow your head gaskets or worse running with higher compression.