Sorry, I totally missed that part. My bad.
Do you NEED for it to be a prebuilt, or are you able to assemble a system yourself?
The price is actually not that bad considering the hardware, but it's used, it probably doesn't have a great warranty and the warranty it does have, if any, might be hard to enforce depending on who the seller is. I don't trust buying hardware from Ebay unless it is being sold there by one of the known retailers or the manufacturer, to be honest. It's like a crapshoot when you buy any hardware from Ebay. You might get lucky, you might get screwed.
If it shows up, powers on and lasts a week, then dies, you're probably on your own.
Notice the notation about being ABLE to transfer the original warranty into your name? Yeah, that's never going to happen through Dell. Only purchases from Dell or one of their AUTHORIZED retailers will have warranties that are actually honored by Dell. I'd avoid that and look elsewhere.
It's very likely you could build your own system, even partially using some of the hardware you have currently, for less than that and end up with much better hardware. But if you are not able to do the assembly then of course that rules out that.
So, what ARE your CURRENT hardware specifications, because maybe you don't really NEED to upgrade the whole system or can maybe just do a partial upgrade instead.
( heres my system information for my computer I hope this helps.)
OS Name Microsoft Windows 10 Pro
Version 10.0.18363 Build 18363
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DESKTOP-DF7L10P
System Manufacturer Dell Inc.
System Model XPS 8900
System Type x64-based PC
System SKU 06B8
Processor Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz, 3408 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date Dell Inc. 2.6.1, 5/23/2019
SMBIOS Version 2.8
Embedded Controller Version 255.255
BIOS Mode Legacy
BaseBoard Manufacturer Dell Inc.
BaseBoard Product 0XJ8C4
BaseBoard Version A00
Platform Role Desktop
Secure Boot State Unsupported
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.18362.628"
User Name DESKTOP-DF7L10P\venli
Time Zone Eastern Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.88 GB
Available Physical Memory 4.24 GB
Total Virtual Memory 9.13 GB
Available Virtual Memory 4.28 GB
Page File Space 1.25 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Not enabled
Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/device(s) detected, TPM is not usable
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes