I've been convinced to build my own NAS again instead of going with a Synology and I'm thinking there are probably parts that don't matter if you buy used vs new but I'm curious what your thoughts are?
So many of us use rosewill. Are you using the one that fits the 15 drives. I got that one years ago for about $130 off of Newegg but at one point there were as low as $80 right before the pandemic. Last I looked they were over 200.