Found an article on I09 with Ron Miller Production artist

https://gizmodo.com/i-made-the-spice-flow-my-work-as-a-concept-artist-on-l-1509730566

Ron Miller says this.

"My copy is the one of the last shooting scripts. And, of course, I have a somewhat better idea than most where Lynch was going.

Spicediver has done a remarkable job…indeed, I helped to an extent by providing blueprints of the spacecraft and other material. The only problem for anyone doing this is that they are limited to the available live action footage.

Of course, it would be ideal if Lynch himself were to reconstruct the film. But given that the chances of this are pretty much nil, there are enough extant notes and other material that someone knowledgeable enough could do a creditable job."

“The reason for the opening is that so much got cut from the film itself, it was the only way to reinstate the. Information.”

https://www.youtube.com/watch?v=YsAx5CqNCRo

"I helped Sasha with this by providing copies of some of the drawings and art as well as blueprints of the spacecraft.

One of the problems with any fan restoration is that it has only the available live action to work with…which even in the “restored” versions is incomplete."