Speaker recommendations 10 to 30k and no beryllium

MBL 120 might work great for you. They have a fantastic soundstage.

DeVore Orangutang and Vivid has been mentioned already and I agree that they are great. Borresen 01 might work if you can accept standmounts.

Two names I haven't seen that I think are worth checking out are Aequo Stilla and Boenicke W11. Might be harder to find.

https://www.aequoaudio.com/

The only thing I would say about Raidho is you need to give them space to breathe and that tweeter is very delicate. It won’t make your kids sick but it can be ruined easily by them and Raidho does not offer grills.
That being said, most amazing soundstage I have ever heard when they are set up perfectly. $18K for D3 v2 is a fine price. You may want to reach out to Raidho and see if an upgrade is available and how much it would be.

otherwise, Blades! Vivid Giyas! Joseph Audio Perspectives! This is choice!

Arteluthe Stiletto
https//www.canuckaudiomart.com/details/649586152-arteluthe-stiletto/

@smodtactical
I’d advise probably Executive Stereo first. I bought mine from Ed and he’s a great guy, and I know he has the Perspectives for audition since I just heard them there myself this week.
TIP: Ask to have the Perspective pulled well out from the wall and spread more apart. I find that showroom to be a bit boomy in the bass and if the Perspectives are near the back wall like they were when I heard them this week, they will boom. The Perspectives are capable of very rich but tight bass - I own the original Perspectives. The ones at Executive Stereo are the slightly updated Graphene driver version.

Regarding Raidho I would look at Borresen also since they have the former Raidho designer. Still as expensive though, this price range only includes their standmounts.