That's the best original pic, outside of an ad, that I've seen on the scavenger headers John. There was a guy on the yenko site that's been referenced to making M/T SS headers and IIRC, was asking around $1200 for them. Haven't heard squat in years, but he made a few sets for members over there. Last I looked orange ceramic coat was iffy, and the shade was a bit off, but that's been a few years since I've checked. Very possible that's been improved over time. I'd be willing to make a set for a day 2 cause, but right now pretty tied up. A good set of hedman 2 inch full length, then chop their collector off and fab up a set of M/T impersonators and round flanges x 4 and you're there. I worked mostly in the field as a sheetmetal worker, but always had access to a full shop, and regret not stealing the use of their facilities.
For my '69 post car, I found an NOS set of Appliance 2 inch, with the square flanges, and they satisified my nostalgia bug or else I would have done this several years back.