For every part what should I get/look out for if I want

Base:
>60-90 FPS
>1440p to 4K
>Mid to High settings

Ideal:
>60-120 FPS
>4K
>Mid to High settings

Price: up to $1,200 give or take. Ideal is $1,000 give or take. For the base PC. I have a old mouse, headphones, monitor and keyboard and brand new tv to plug into.

I'm not asking much for which parts to get more what specs for each part I need to look out for.

Looking for
>CPU
>CPU Cooler
>Motherboard
>RAM
>Storge
>Video Card
>Case
>Power Supply
>Monitor
>Optical Drive (optional)
>Mouse and Keyboard
>Headphones (optional)
>Anything else I'm missing

Other things
>What is the safe wattage range?
>I hope I can get a OLED or QLED Monitor (someday)
>I really hope I can get a 4K Monitor that can show 120 FPS even if my pc can play at that. (I can upgrade)
>I can go pre build
>I play mid range games, old shit and open world shit. I want to get into shooters. I mod and download a lot of pictures.