Pricing a Lenovo P520 with 128GB DDR4 RAM?

I am not sure whether this workstation I picked up for $400 CAD is worth anything decent. I know the CPU/GPU is trash. I was also thinking of selling the system with most of the RAM taken out of the system, and selling the Ram separately (if it is even worth anything good, considering its server ddr4...)

Specs:

Lenovo P520 Workstation

CPU - Intel Xeon W-2133

GPU - NVIDIA Quadro P620

RAM - 128GB (8x16) DDR4 ECC RDIMM

SSD - 2TB SATA