Kenny-when you mention PE, are you referring to this set from Model Car Garage?
https://www.modelcargarage.com/eshop/pc/viewPrd.asp?idproduct=201&idcategory=0
I looked at the Revell instructions for the 53 Corvette and the headlight/wire covers are two seperate pieces and the wire covers appear to be PE-don't know where you would find those parts but as Jim replied, posting in the Auto section might get more views/replies.
Good luck