Yes, I opened it in a DIY cheap glovebox and moved the heads.
When connecting it back to laptop, it did many noise but worked. After that I imaged it with dd_rescue for 3 or 4 days.
I finally obtained ~40% of readable sectors (the starting and end of the disk sectors zones where heavily corrupt).
After that a photorec pass was used and recovered files parsed a little with a custom bash script (for adding relevance, removing dupes, sorting, ...).
I could maybe do better with professional tools. I don't know if in Paris there are geekly professional for experimenting a different approach for comparison.
That's it