Heres a thought.
Get it and use it to make a mold, Then also mold of the bottom of your old lid.
Then paint the insides Base.Coat.Clear.Coat. and then !!!
bee's wax the inside of the molds and lay some fresh fiberglass in them (one at a time) Let it set up hard and when it heats up as it cures blow some compressed air in one corner and watch a new part pop free and ,, trim it to match your old lid them sand the inside with 40 grit and sand the new inside counterpart to prep it for adhesion and glue up your new lid with duramax glue..
The same process used by Peterbuilt and Gm for the corvettes ..
Now you can resell,, the Louver lid and make and sell lids for other kitcars. builders as needed.. like Vs
Even if you get some body shop to do the work on making your molds. when their done ,their done ,and can be used over, and over, and over, as long as you wax um up well they get better and better as they are used but must be Kept clean when not used, Dust sticks to wax