Not ideal but you can go for used rack mounted servers. You can easily get even better specs for less than 2k with reasonably recent CPUs too (E5-xxxxv3 and up)

Not ideal but you can go for used rack mounted servers. You can easily get even better specs for less than 2k with reasonably recent CPUs too (E5-xxxxv3 and up). At least that was the case when I set up my home server rack ~2 years ago. (Though 24TB might be too much since server grade SAS storage is very expensive even when it's used. So what I did was to buy servers with as little storage as possible and then just put SATA HDDs that I can get for dirt cheap.)