Jim,
Ive only seen a few of them I felt were factory paint. And I don't remember them having a rough finish like organasol does .
I used to have one but mine had been painted white, and even it I think was fairly smooth. BUT thats been years so don't count on me being 100% dead nuts accurate

Was the scoop even avail without the hood blackout stripe ? Is there a paint code for the stripe or was it a decal ?