EGR,and a Throttle position sensor,Any sensors I can find.Trying not to spend a lot to figure out what is wrong with my avenger.

Also need a spoiler and a passenger door handle.

check out partsbin.com. That's where I get most of my parts. As for cost, alot of Avenger ES parts are expensive. I had to replace a control arm/ball joint and the only place I could find one was parts bin and it was $250.
Body parts can be found just about any junk yard.