I got a 4 SATA bay chassis for 75 on Amazon. PSU was 50, board, CPU and RAM was 130. The drives were another 500... You can get project cost down by using re

I got a 4 SATA bay chassis for 75 on Amazon. PSU was 50, board, CPU and RAM was 130. The drives were another 500... You can get project cost down by using refurb drives for OS/scratch. Or just picking drives more based on price per TB than a target storage amount