I’ve had good luck with Ebay. I got two 5TB enterprise drives that were SMART tested and from a trusted seller for $100. I’m in the US so YMMMV, but I’m pretty sure Ebay is global.

Also to dissuade your fears: Ebay actually has really good buyer protections now, and a good reputation system for sellers.

This is such a good way of organizing services. Thanks!

Where did you get that sticker?