This will be a recreation of the 70mm limited release. All of the differences can be read on the wiki. According to this post most of the material exists on one format or another so this shouldn’t be too hard of a project.
Edit: I’m using the 70mm recording and the Super 8 as the two main references. Any changes that are confirmed (alternate dialogue, sound effects, Falcon radar dish, Emperor hologram, etc) will be added.
Harmy’s despecialized ESB
The Story Of The Empire Strikes Back
morgands1’s 70mm recording
Puggo’s Super 8 Scan
Here’s a preview of the Cloud City matte without the radar dish: