So stoked to get massive storage setup for doing video work! If you have been doing any video work in 4k you know how quickly you can eat up your storage space.
I have been having this issue so I went ahead and upgraded to the Promise Technology Pegasus3 R8 Mac Edition 80TB 8-Bay Thunderbolt 3 RAID Array (8 x 10TB). I set it up in the RAID 6 configuration so two of the drives would be redundant. This allows a drive to fail and then during the process of adding a new drive to replace the failed drive, another drive could fail and it would not result in data loss.
Should be enough storage for a while I hope!