This is a tweleve part series I did building a very fast cost effective NAS with 17 drives, 62TB storage, 16 Xeon Cores, and 10Gbit network cards for only around $1800 USD.
NAS Build 2019 Step 1 - Ordering Parts
NAS Build 2019 Step 2 - First parts delivery
NAS Build 2019 Step 3 - Fan Upgrades
NAS Build 2019 Step 4 - Power Supply Installation
NAS Build 2019 Step 5 - Final Parts Delivery
NAS Build 2019 Step 6 - CPU Installation
NAS Build 2019 Step 7 - Hard Disks!
NAS Build 2019 Step 8 - Firmware Updates
NAS Build 2019 Step 9 - OS Install & Initial Testing
NAS Build 2019 Step 10 - Introduction to ZFS
NAS Build 2019 Step 11 - Some thoughts about the final build