I have my aftermarket stainless muffler hangers. They are stainless and I have redesigned the bracket into bendable segments for a better fit.
I have one original base bracket and one of my aftermarket ones. They are a very close match and are painted bright silver.
If the light bodies are gone. I can (and have) build nice shiney silver new ones with 6 volt bulbs, complete with mounting and wiring.
My through the frame wiring system requires you to replace the press in mounts with my hollow bolt system. Otherwise you can drill holes in the bags for wires.
You can pm me for further details. I have references from folks who have gotten my restored Buco product and my lights. My lights have the beehive lens, but you can get the Stratolite types that will fit.
This is a pic of a set of Buco bags on my 65 CA95 restore (now sold)