Sounds like you’re already aware, but just in case, keep in mind comp’d guns aren’t allowed in Lim Optics in USPSA (bumps you to open where you really need a full open gun), will be more useful in 3gun.
Atlas guns are usually a pretty solid pick - fairly easy to obtain (IE no long lead-time / often available off the shelf), reliable and from what I’ve seen pretty high quality. Recent price increases means they have gotten up there in price for what you get (IMO), they used to be a really good value two or so years ago, but still not too bad given more broadly higher end 2011s have gotten pricey. But Atlas was started as a competition-oriented company so has a lot of options catered to it.
Have been hearing good things about the Vudoo Priest for the price - they have a steel grip option too (which Atlas generally doesn’t for 9mm guns). MPA is a pretty good value too though I heard some hit/miss things about quality on some early guns. Have heard it’s been fixed but not a ton of experience personally.
Infinity of course on the high end, but with the most recent business model of set model pieces and the fact that they sell out instantly, probably a no-go in current form. I’d want to chose my specific options for that money.
Generally my take is that it’s pretty diminishing returns in the 2011 Lim Optics world as long as your gun runs reliably.