I think that should be enough. Maybe try two vCPUs if you wanna host other stuff too. But for just for some mirrors/aggregators, one vCPU is probably enough. I don't think you really need to worry about RAM or storage either.
Computers are plenty fast these days. I think you'll only start to see actual performance issues when handling hundreds of simultaneous users.
In any case, you shouldn't be spending over $10/month. You can get much lower. Take a look at this. I don't know how reliable or secure they are, but they're very cheap. I've used their VPS in the past, and it seemed pretty okay.
Edit: You can also do what I do for heavier stuff like Jellyfin and Immich, and simply use the VPS as a relay. The actual stuff runs on my home server, connects to the VPS via Wireguard, which then masks its IP.
These people don't have any sense of shame when you point out their corruption. At least in this case, they seem to care. So be it. Shame these bastards. The point isn't that drag (or whatever the appropriate word here is) is bad, it's not. I enjoy going to drag performances myself. It's that they preach values that go against this. So, at least to me, it's totally fair game to ridicule them for this.
I think actual LGBTQ people understand this nuance, since they seem to be shaming him too. I'm a little fat. (Not too fat anymore, have been working out. But it used to be pretty bad.) But I don't give a fuck when people fat shame Trump or Musk. It seems to hurt those bastards. Because they're petty and shallow people.