I living in GCC and I found a secondhand Gaming PC with the below specs :
CPU : I7 13-700F
GPU : GIGABYTE AORUS MASTER 4090
Storage : addlink 4 tb m.2 gen 4
Ram : tforce delta 64gb(16×4) 7000mhz
Motherboard : gigabyte z790 aorus master
PSU : Xigmatek 1000 watts gold
Fans : Lian li dynamic evo rgb e atx
Windows 11 pro activated
Monitor : Epic gamers 24 inch 200 hz fhd fast ips monitor blue colour
Keyboard : epic gamers chimera red switch fully mechanical hot swappable full size keyboard
Mouse : Xigmatek Mouse

The weird thing he asking for 2000$ with the monitor,
I went there and check the Pc onsite and do benchmark test and srress test as showing in Pictures when I was trying check the motherboard serial number it was giving "Default string" he said maybe need bios update..
He didn't provide any boxes or receipts for the parts but he said he brought it as brand new..
I did userbenchmark test it was showing "less than expected, as for same 100 pc setup your pc was ranking 32/100"
Any advice if I can go ahead and buy it?