Would also love to help with this. The links for the method that was used are no longer working. I’ve been trying to upscale DS9 from the DVD’s myself and would like to see how this workflow varies. I could help in doing the whole series. I have a 3950X with an RTX 3080 and a 9900K with a 2070 Super.
If someone could post the method, I could start rendering episodes.