You could consider a couple of those SuperMicro server cases and link one as a JBOD via a SAS card… see things like https://www.servethehome.com/sas-expanders-diy-cheap-low-cost-jbod-enclosures-raid/ I picked up a 12bay CSE-826 with a SAS3 backplane and two 80 Platinum redundant power supplies for $300. I know you’d need a larger one, but eBay is a great place :-)
You could consider a couple of those SuperMicro server cases and link one as a JBOD via a SAS card… see things like https://www.servethehome.com/sas-expanders-diy-cheap-low-cost-jbod-enclosures-raid/ I picked up a 12bay CSE-826 with a SAS3 backplane and two 80 Platinum redundant power supplies for $300. I know you’d need a larger one, but eBay is a great place :-)