Blair,
I don't know exactly what you are looking for in your header coating. I had mine done in mat black ( the origional Cobra color) 4 years ago that still looks good. It cost less than $100.00 at Prescott Power coating including sand blasting. I am sure they have many more options, as I just had my new roll bar done in a hammertone silver.
Bill Gildersleeve
byepa@aol.com
520-636-6190