Should I sell this server to fund a gaming PC?

I’m shopping for a gaming PC in the $1400 range. To fund my purchase, I’m planning to sell a datacenter server I picked up from a friend. As I’ve been researching going rates for the server parts, I’ve realized it seems to be worth well over $1000.

I’m a software guy, not hardware, but I have to wonder: does this make sense? Should I sell this server, or use it as a starting point for my gaming build? I can obviously re-use the HDDs, the case, and the PSU. I think I can put the 2060 Super in that motherboard, though I’d obviously need to find different CPUs.

So should I pursue an all-new gaming PC, or build a Frankenstein-style gaming PC/server monster?

My Gaming PC Build:

Part Price
2060 Super GPU 400
AMD R7 3800X CPU 300
1TB Intel 660p SSD 120
16GB 3600MHz DDR4 RAM 80
Fractal Design Define R6 Case 150
Gigabyte Aorus Elite WiFi X570 190
750W 80+ Gold Power Supply 100
Total 1340

My Server:

Part Estimated Value, Used, Total
Corsair RM1000 80+ Gold PSU 140
Samsung M393B2G70BH0-YK0 16GB DDR3-1600 RAM (16 sticks, 256GB total) 320
IBM SAS9220-8i 8-port LSI 6Gb/s SAS + SATA III controller 40
WD Blue WD10EZEX 1TB 7200 RPM NAS HDD (2 disks, 2TB total) 56
HGST 0F17731 3TB 7200 RPM Enterprise HDD (2 disks, 6 TB total) 96
WD Red WD40EFRX 4TB 5400 RPM NAS HDD (2 disks, 8TB total) 144
SuperMicro 933T-R760 3U 15-drive Hotswap Server Case 160
Intel S2600CP LGA 2011 Dual-Socket Server Motherboard 120
E5-2650 2.0GHz 8-core/16-thread Xeon CPU (2 CPUs) 48
Supermicro AOC-SG-i2 2-port Gigabit PCI-E Server Ethernet Card 36
Lite-On 035DNT 256GB mSATA SSD 28
Unraid 6-drive License 40
Total 1228

Reference doc, with links to part specs and retailer pages:

for estimating used value, you need to look at eBay completed sold used listings to understand what the market value is. On top of that you need to look at recent ones to understand pricing trends. Here is your power supply that I estimate will sell between 60 and 90 dollars:

The drive prices are also a bit high. 3TB drives are <$30 unless they are really low hours. 1TB drives are free with purchase unless they are 2.5"

that system would fetch less than $1200 for sure.