Looking to buy BTC mining hardware

Hey! I was about to buy a new gaming PC for about $1600-1800 but I decided I want to use that money to buy some sort of hardware to mine Bitcoin! I've been looking through previous posts on hardware and how it all works but I am still very confused on which system is the best for a total price of that because there are so many different systems. Also, I'm confused about all the parts needed to purchase to mine Bitcoin. Thanks in advance!