Duster Rear Window Louvers

i really wish i had a way to mold some ABS plastic. i have done a little searching but i have come up empty. the sides would have to be some sort of injection molding or fiberglass, but i think the big part here is getting a good solid mold of the actual part. i dont think you could even get the sides or the rear through any aftermarket company back in the day. aluminum would probably work for the rear window. the sides, probably not so much to avoid the boxy sharp lines. i will keep on trying to find out what i can and keep on searching though.