Adywan, you may have come across this already but Adobe Enhance Speech is in beta right now:
https://podcast.adobe.com/enhance#
I used it here on some clips from ANH and it’s pretty amazing:
https://youtu.be/K3VBE5hMVu0
It’s not flawless. And I’m sure you can mix the vocals into your edit better than I did in my clips. But I thought you might want to consider using this for certain parts in ANH:HD.