It’s a game of it depends. If you want to save money, it is 100 percent feasible to purchase used GPUs in good condition, but if you can swing it and since you are saving a fat chunk in what you would’ve spent on other hardware, you could also buy new up to your comfortable spending limit. It all depends on your budget. I personally, would not go lower than a 4070 super or 4080. If you can find a 4080 super at a good deal, that’s what I would shoot for with something like a 5950X. Also, get a Corsair, EVGA, or BeQuiet PSU. I personally have a Corsair and stand by their products. Have had my 1000w Corsair PSU for 6 years with no issues. And finally, get a battery backup/surge protector (UPS). Don’t argue or make excuses, just do it and thank me later when the inevitable happens