The original organisol is tough to shoot, not compatible with many of todays paints and tough to clean/maintain. Try planet colors "Rugged tones black textured paint PCR2 http://www.planetcolor.com/en/Products/~/media/Shared/Planet-Color/catalog.ashx found about 15 pages in. My painter stated that since it's a hardened product it should be tolerant of wax as well. I have a test panel thats been shot over a year ago so I'll try a bit of wax on it soon.....

Theres an old thread here that we have some cool info on... https://board.moparts.org/ubbthreads/show...t=2#Post3880794

And another.... https://board.moparts.org/ubbthreads/show...t=1#Post4744321

I just can't find the factory paint diagram, or anything showing how they shot it or with what....

Another thread on Organisol https://board.moparts.org/ubbthreads/show...page=0&vc=1

Another https://board.moparts.org/ubbthreads/show...part=1&vc=1

Burdar is the fella who tipped you to me
My is I'd try to keep it a stock paint scheme. If you add billboards then from afar it will just look like a car you modified and folks will assume thats a non stock or added hood paint scheme. You have something different there I wouldn't muddy the waters.