sbc 4x4 headers?

[1969 GMC]

One of the first power adding mods I'd like to do is add an exhaust to my truck. Currently am running a single exhaust from ramhorns, with one Brand X muffler and no tailpipe. I would like to add some headers, dual exhaust, an x or h pipe, and some larger tubing. For now, my ? is this: what is a good kind of header to get for my application? I want to get something ceramic coated so it will last in Ohio's crappy weather. I was thinking along the lines of Hedman headers, but I am open to suggestions. Thanks