the wood grain piece should be removable. if its not screwed in then it might be snapped in. the local you pull it yard is a good spot to test it out and see how its mounted. i know that wooddash.com sells kits for interior trim. but its like 150 dollars
The wood pieces that I have found on the '99's have been "heat welded"... I think you could, somehow, cut off the plastic "mushroom" and maybe do the same to your door then , maybe you could somehow glue them in. Let me know,as I was thinking of doing the same to my doors.