Mount existing 2-HDD RAID 0 on a new machine
Solution 1:
Finally, this was not so "impossible" to retrieve, even without "vital" informations...
As I said, my two disks are clean and 100% works. I re-put them in my USB RAID controller using JBOD configuration (in order to show to Windows two different disks).
First, I ran ReclaiMe Free RAID Recovery which retrieve my RAID configuration in a few minutes. Second, I used a recovery software which support RAID 0 configuration. It mounted a virtual NTFS partition of my two RAID 0 disks which can be fully explorable. So I retrieved all my user data.