If you want to use a cloud provider, then your main problem will be uploading this much data and then downloading it back again, both price and time wise.

If you happen to have a symmetric gig pipe (or larger) that definitely helps :) I currently have 27 TBs in the cloud, for most of it, it was just easier to re-download it since the cloud VM had a 10 gig pipe compared to my gig down and 30 Mbps up (cries in Comcast...I moved and now I have access to AT&T fiber at up to 5 Gbps, its like $250/month though). I thnk I'm gonna move everything back locally, doing everything in the cloud was a temporary solution for when I lived with my parents for a few months. They weren't too happy about the electricity bill of my 15 HDD, 8 NVME drive, 2x10G nic, 128 GB ECC, 1KW PSU running a Threadripper 2970wx, liquid cooled of course ...and then having the AC running 24/7 to keep i cool. I had all of that crammed in a 4U server, which was pared down from my larger on which I was using at my other apartment.

with could storage I find I'm able to download large files from the webUI, but I could attach the bucket and just get the data from here.