Render server/ NAS for small business?

Hi, 

I have a small company, and we work with 3D illustrations and rendering.

I'm seeing the need to have a server to improve render time, and use UnRaid to have a NAS (in the same system) here in the company as well.

As it is my first time building a server, I would like to know if I am forgetting something, or if exist any part that has a better cost benefit.

CPU: Intel - Xeon E5-2660 V2 2.2GHz 10-Core Processor  ($200.00) 
CPU: Intel - Xeon E5-2660 V2 2.2GHz 10-Core Processor  ($200.00) 
CPU Cooler: Noctua - NH-U12DXi4 55.0 CFM CPU Cooler  ($64.95 @ Amazon) 
CPU Cooler: Noctua - NH-U12DXi4 55.0 CFM CPU Cooler  ($64.95 @ Amazon) 

Motherboard: Supermicro X9DRI-LN4F+-O Dual LGA2011 /Intel C602/ DDR3/ SATA3/ V&4GbE/ EATX Server Motherboard  ($496.69 @ Amazon) 

RAM: 8x 8GB 64GB RDIMM ECC REG DDR3 1600MHz RAM HP Workstation Z420 Z620 Z820 A2Z51AA ($207.00)

Storage: Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive  ($139.99 @ Newegg) 
Storage: Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive  ($139.99 @ Newegg) 
Storage: Western Digital - Red 8TB 3.5" 5400RPM Internal Hard Drive  ($262.99 @ SuperBiiz) 
Storage: Western Digital - Red 8TB 3.5" 5400RPM Internal Hard Drive  ($262.99 @ SuperBiiz) 
Storage: Western Digital - Red 8TB 3.5" 5400RPM Internal Hard Drive  ($262.99 @ SuperBiiz) 
Storage: Western Digital - Red 8TB 3.5" 5400RPM Internal Hard Drive  ($262.99 @ SuperBiiz) 
Video Card: EVGA - GeForce GTX 1050 Ti 4GB SSC GAMING ACX 3.0 Video Card  ($173.98 @ Newegg) 
Case: Corsair - 750D ATX Full Tower Case  ($148.89 @ B&H) 
Power Supply: EVGA - SuperNOVA 1000 P2 1000W 80+ Platinum Certified Fully-Modular ATX Power Supply  ($249.88 @ OutletPC) 
Other: 10Gtek for Intel 82599ES Chip Ethernet Converged Network Adapter X520-DA2  ($99.00) 
Other: SAS9211-8I 8PORT Int 6GB Sata+sas Pcie 2.0  ($119.98 @ Amazon) 
Other: Asunflower 3.3Ft Internal Mini-SAS 36P (SFF-8087)Male to 4x SATA Female Breakout Cable  ($9.99 @ Amazon) 
Total: $3367.25