By what I can tell that it is all one piece and you are unable to buy the covers individually. I am referencing PDF page 91 or page 8-1105 in the 2005 crossfire parts catalog available on this forum for download.
https://www.crossfireforum.org/forum...ollection.html
Someone may sell you them off the forum out of a wrecked or a parts car. You can use the marketplace area of the forum for this.