SATA+NVME controller can be found here: https://amzn.to/2WQRjw3
SATA M.2 to USB adapter here: https://amzn.to/3f6DFv8
Instructions on how to make the SATA boot drive USB can be found here: https://winraid.level1techs.com/t/guide-nvme-boot-for-systems-with-legacy-bios-and-uefi-board-duet-refind/32251