For 1k you can build a beast.
Just throwing out an option if you aren’t aware, gohardrives on ebay and on their site sell used Hdds. 10Tb for $80. The catch is they’ve been used in data centers for 5 years. The company will guarantee the drives for an addition 5 years and it could save you a lot of money depending on how much you want to risk it. I went with 3, one being a parity drive in case other goes bad.
Make sure you’re straighting them out before hand with the tip of a screwdriver makes it easier. Also look for rj45 connectors with a load bar, makes it a lot easier since you can feed them one at a time and make sure they are aligned properly, often they also come with pass through connectors and you should be able to do that in no time.
Thanks, this has been added to unraids community app store BTW so hopefully you get a good uptick in users from there.