Yeah, it's been a while, but they still seem active on the forum... I know it's a longshot.
The way I would go about it is exactly what Moviefreak suggested - and if you want a starting point, I just made the OMNI cover in Illustrator for you to use. I would opt to NOT have the Protopack on the poster, since, well, you're hanging one on it.
You can edit them as you wish, to have more accuracy. I added the fonts used, and you have 2 versions of the vector Illustrator file (one with fonts, the other with traced fonts).
I also added a PSD file, which uses the vector, to add the fog/smoke, but it isn't very accurate. BUT the fonts should be spot on (the font for the barcode was trickier, got something close). The OMNI logo was made from scratch.
Here's the result of the PSD:
View attachment 1729808
You can find everything in this shared Google Drive folder:
Google Drive Shared Folder - OMNI Cover