Just a general tip if you're having issues with scalpers, go to your local computer store(s) and talk to the nerds in the computer department who are actually into building things. A lot of the places have some ways of getting parts that are otherwise unavailable and the general staff won't always have the knowledge if you call in.
I had the same issue when I was building this PC and the nerd at Microcenter got me a barebones build with the motherboard and PSU I wanted, as well as a case I was fine with that also had a 3060 in it that was impossible to find at the time. The whole thing was pretty much what I'd pay for all the parts anyway, and it let me skip the lottery for a GPU.
Contrary to popular belief, physical locations have their perks with how much bullshit retail arbitrage happens online these days.