Hey Michael. (And welcome by the way!)
That does look like it would be a surprisingly plausible replacement for the cording we see on screen, but the original to me looks like it is thicker, almost like a half-cylinder rather than a flat strip.
This is just how I perceive it though. I don’t have any inside information. I could easily be seeing it wrong. It’s unfortunate because finding the right cording is the one thing that is really holding me back from plunging forward on this project.