SATA Drive Frame for Librem 13v4

I purchased a Librem 13v4 in 2019 with an NVMe M.2 Drive, and now I want to add a SATA Drive. I’ve read there is an aluminum frame required so the SATA Drive doesn’t move around, so does anybody know if that can be purchased direct from Purism, or on Amazon, eBay, NewEgg, etc.?

Update: reached out to Purism Support, and was able to get the bracket through the normal sales process.