Anything from 2004-2008 would fit intake wise, they are all same 3800 motor. But the cost in my eyes is too damn high for basically looks and zero power gain. Sure you get the intake noise but it's not worth the 250+ dollars.
You can make your own intake for under $75 and it'll do the same exact thing.
As for headlights, stay far far far far far away from the LED or HALO style headlights for those cars. The light output is worse than factory and you can guarantee that almost everyone else will say the exact same about them.
Rockauto sells brand new headlight capsules for 40ish per side if you would like a fresh set of new ones. Very worthwhile if yours are foggy and yellowed. Get the TYC brand if they have them.
Tail lights are an ebay thing most likely, many have bought from them and they look decent.
