1963 Plymouth rear deck filler panel

Hello all members. I just joined today and looking for help. I am the second owner of a 1963 Plymouth Fury 2D HT with the 318 Poly and the 727 Tranny. After owning the car for the last 43 years and 289,000 miles later I am in the process of a full restoration. Yes, that is 43 years... This is my first car and I purchased it just after I turned 16 way back in 1973.

I need help and hoping someone here will have a solution. I need a new rear deck filler panel that fits between the rear windshield and the trunk lid. Mine is full of rust holes. Does anyone know where I can find one?

Many thanks!
Author: FrankB