I've got a repro wing with the brackets if you still need it. It's new but was just installed on the trunk lid of a project car but the project never got finished.
I found a repro that is Mopar approved. Same weight, same angles, everything as original, just not a true original. They come with brackets for $376. Not a bad price by any means. What do you want for yours and how good is it compared to OE?