Are you forgetting about the computer? If you upgrade to either a Quest 2 or Reverb G2 you’ll need a good system if you want to take advantage of the higher resolution. For example, I had a Rift S paired with a 2070 super. I upgraded to a Reverb G2 and the 2070s worked but it was borderline. Once I upgraded my GPU the clarity really shined. I’ve heard the Quest 2 is even harder to drive because of the compression required to send the signal to the headset but I have no experience with that.
FYI: I bought a 6900 xt but you probably want a 3070 or 6700 xt as a minimum.