RAID 5 crash... trying to save what I can

I have a QNAP server with 8 disks. I have 2 backup/extra disks that are not in use. (I had the money an knew eventually the running ones would need replaced) The full array was across the 8 disks @6TB each... math... but I pretty sure less than 1/3 was currently filled. I had a rep from QNAP work on it and said that with a double disk dive it most likely wont recover. I have faith in the rep in regards to what he is allowed/can do... but.. I have seen things where people pretty much recovered from this type of disaster. My hope is resting on the fact that according to the system all the disks are still good??? Getting a "Bad magic number" / "Couldn't find valid filesystem superblock" This is the device diag output before rep and then after rep: **** BEFORE ****: RAID metadata found! UUID: cccd0319:89c30791:58322cfe:12ed5c64 Level: raid5 Devices: 8 Name: md1 Chunk Size: 64K md Version: 1.0 Creation Time: Mar 23 11:49:45 2017 Status: OFFLINE =============================================================================== Disk | Device | # | Status | Last Update Time | Events | Array State =============================================================================== 5 /dev/sdl3 0 Active Apr 28 08:03:55 2019 3927 AAAAA.AA 6 /dev/sdk3 1 Active Apr 28 08:03:55 2019 3927 AAAAA.AA 7 /dev/sdj3 2 Active Apr 28 08:03:55 2019 3927 AAAAA.AA -------------- 3 Missing ------------------------------------------- 9 /dev/sdh3 4 Active Apr 28 08:03:55 2019 3927 AAAAA.AA 10 /dev/sdg3 5 Active Apr 23 15:03:27 2019 3515 AAAAAAAA 11 /dev/sdf3 6 Active Apr 28 08:03:55 2019 3927 AAAAA.AA 12 /dev/sde3 7 Active Apr 28 08:03:55 2019 3927 AAAAA.AA =============================================================================== **** AFTER ****: RAID metadata found! UUID: a6860c7d:0b020f8d:1a61ec72:4684aeb7 Level: raid5 Devices: 8 Name: md1 Chunk Size: 64K md Version: 1.0 Creation Time: Apr 29 14:08:04 2019 Status: ONLINE (md1) [UU_UUUUU] =============================================================================== Disk | Device | # | Status | Last Update Time | Events | Array State =============================================================================== 12 /dev/sde3 0 Active Apr 29 14:38:42 2019 331 AAAAAAAA 11 /dev/sdf3 1 Active Apr 29 14:38:42 2019 331 AAAAAAAA 10 /dev/sdg3 2 Rebuild Apr 29 14:38:42 2019 331 AAAAAAAA 9 /dev/sdh3 3 Active Apr 29 14:38:42 2019 331 AAAAAAAA 8 /dev/sdi3 4 Active Apr 29 14:38:42 2019 331 AAAAAAAA 7 /dev/sdj3 5 Active Apr 29 14:38:42 2019 331 AAAAAAAA 6 /dev/sdk3 6 Active Apr 29 14:38:42 2019 331 AAAAAAAA 5 /dev/sdl3 7 Active Apr 29 14:38:42 2019 331 AAAAAAAA ===============================================================================