You don’t have to replace all 16TB, and it doesn’t have to be NVMe’s. Just get a single 1TB for about $110 for your OS and FS2020 stuff (and even better if you can go NVMe, though a bit more munee), and call it a day! I can actually help you get it setup if you’d like… But I will insist that you have a current backup done somewhere! Hopefully you’re already doing that.