I went and looked at South Africa computer systems, and this is what I came up with from this website
https://computermania.co.za
Things that can change = I couldn't find 2x4GB ram on website - but that is better if you can find that
You don't need both an SSD and HDD for now, the SSD will make computer feel faster and can fit some games on it, but you may have a lot of games and so you can use your old HDD as well
the CPU can be changed to something less, like a 200GE to save money
SSD can be smaller at 120GB - but then only few games will also fit on it
There is no GPU but the one inside the CPU called an iGPU
FSP Hammer Series 500W Power Supply R849.00
Ballistix Tactical Tracer RGB 8GB 3000MHz Desktop RAM Red R2,399.00
Deepcool Tesseract SW Black Window Side Panel R749.00
Toshiba Internal P300 1TB 7200rpm 3.5" SATA Hard Drive R849.00
AMD Ryzen 3 2200G CPU R1,899.00
MSI B350M Gaming Pro Mainboard (AMD) R1,699.00
Crucial BX500 240GB 2.5" SSD R1,099.00
Cart total
Total: R9,543.00