Here's a basic PC built mainly for office work with a bit of RGB bling to match the customer's existing white keyboard and mouse. Quality components that would last for years to come. The modest i3 CPU represents great value for money given it's faster than even a high end i7 7700 from just a few years ago.

CPU: Intel i3 10100 4cores/8threads 4.3GHZ
MOTHERBOARD: Asus TUF B460m wifi/Bluetooth
RAM: 16GB TFORCE White RGB DDR4 3200
STORAGE: 1TB Kingston NVME SSD + 2TB Seagate HDD
CASE: Darkflash DLM23 White + aRGB fans
COOLING: Deepcool GAMMAX GTE V2 White
POWER SUPPLY: Corsair CV450 450 watts 90+ Bronze
MONITOR: AOC 27inch 1080P IPS LED
MOUSE: Logitech G304 Lightspeed wireless white
Windows 10 pro + Office 2019 activated.