X99 Chinese Dual Kit for unraid server

I was looking through x99 motherboards on aliexpress due to an interest in how others were using them for workstations and gaming

I found a kit for 444 that comes with a x99 dual socket mobo, 64gb of ddr4 ecc ram, and two Xeon E5 2620 v3

# Xeon E5 2620 v3

I can unlock these boards with special bios, would they be good as an all around unraid server for plex, VMs for game servers, dockers and has anyone used them before for an unraid build or anything else?

My Current Build is
16GB of ram
GTX 960 for plex transcodes
2 3TB drives
500GB cache

I never_the pricing on these, for that price. I would probably just buy used Enterprise equipment.