I got a hard drive that has been modified from Amiga FFS2 DOS7 (long files names) to SFS02 and quick formated in that new SFS2 format.
problem is that some important files has been forgotten on this drive before the change of format

This is on X1000 with AmigaOS4.1 Final edition, hard disk is 1 partition (full disk).
I've changed back the dostype to FFS2 DOS7 but after reboot it appears as (expected) "HDD:SFS2#?" unformatted disk.
before FFS2 I would have used Quarterback tools for that salvage but it is not compatible with DOS7 FFS2 disk

what can I do to recover the files that are still on the drive ?
Thanks.