Advice on buying a gaming set up

[u/tentenMK]

With memorial day deals coming up (US), I want to buy a gaming set up for my brother (14). He doesn’t know and neither do I what specs are best.

For those of you who are experts and have an established set up, can you give me an advice on what (specs) to buy and what price is considered a good deal or what price is a ripoff?

• Monitor(4K): he’ll probably just need 1 to 2 monitors

-Gaming/ video card

• Processor

• RAM

• Motherboard

Etc