Quick update on this... I had another read error, so I took the server down, and I rebuilt into the new case. I replaced with as many new cables I had, and I'm still using the same power splitter off the molex power cable (I'm using some shucked drives). I'm back up and running, added 2 new drives, and added 1 to the array successfully. It's been up for 2 days with no issues so far.
So in the end, I had to:
1) reload my flash drive from backup
2) replace / reconnect SATA and power cables
3) rebuild an array drive
4) ran scrub on my cache ssd
5) delete and replace my docker and libvert image as these were corrupted along the way.
So far so good. Thanks for the help, @JorgeB. I'm sure I'll be back in the future.
