Putting the bad drive back in didn't help so I re-partitioned the 'good' drive, and received a different message saying to run fsck.
Good sign, right? lol
I run:
fsck -F ufs -y /dev/....
Receive message Bad Super Block, use and Alternate.
I then use 32:
fsck -F ufs -o b=32 /dev...
Message is...