You’ve got a couple great contenders there IMO. I got to hear the Grand Avant Gardes at a show in NYC last year (unfortunately can’t recall the associated electronics), and they were outstanding and were in my top 3 at the (albeit relatively limited) show. I’d also suggest the Joseph Audio Perspective 2s as another excellent option to maybe add to your list, and there’s a near new pair (still in plastic wrap) available now in Our Home and Native Land at a substantial discount in case you’re interested…
https://www.canuckaudiomart.com/details/650068722-joseph-audio-perspective-2-graphene-like-new/
I’d be remiss if I didn’t at least bring up these used Pearl 3s as they’re also in your price range and are legit end-game speakers. They’ve been available for a while so may be negotiable at this point. To my ears Gershman and JA speakers share many of the same considerable strengths and why I love them both.
https://www.usaudiomart.com/details/650017479-joseph-audio-pearl-3-speakers/
Hope this helps, and best of luck in your quest!