The front fillers are natural. I only have two options with those. Either paint them a color that matches the natural gray or find NOS. I think you will be able to tell they are painted so I may try to find new ones. I havn't decided yet.
As far as the rear is concerned, I havn't decided on that either. There is a member on Moparts that I talked to at the Nat's last year. He ended up doing what I suggested to him which was to spray the dark argent(Totally Auto's paint) on first and then mist the light argent onto it. His turned out pretty good. You won't get the same texture as factory but it is a close match in color.
I had a phone conversation with Mike from BE&A about the tail panel argent awhile ago. He makes his own for use on the products he sells. He has some origonal Chrysler argent samples that the factory used for quality control when some pre-painted parts came in from other suppliers. His team spent a lot of time and money creating there own argent to match those samples.
He said he would be willing to send his painter out to shoot the tail of my car if I wanted to go that route. The problem is that it would be a lot of money to pay his painter to drive two hours to where the car is, paint it and then drive back.