Only $1500? How much would this setup cost today?
Each 2TB of SSD is like $85, double it if you want local redundancy in your software RAID.
The rest is basically a nice custom PC minus a cool case and a high end GPU. A 9950X is $500, a 2x48GB kit is maybe $200. A few hundo more for a mobo, PSU and basic case.
Some quick checking on Newegg and I came up with this. https://newegg.io/64113a4 About $1200. I didn’t look into the power draw for this setup. Added bonus there is space for a GPU if you want to do some AI stuff.