msycamore said:
... other wise I have the original one sheet in hi-res, if it is to any help.
I use to think I have the biggest and better high res pics findable, but as you already surprised me I'd be glad to check what you have ! :)
Besides I think the results of images search may vary depending on the country we're living in.
...
Here's another idea... If not a cover, may be the opening booklet page. I love that photo and have been able to find a high res version.
Well, I'm just sketching anyway and for now I still stick on my first idea with the executor so it fits with both the dynamic and power of the recovered sound ;)