$15K for Yamaha NS-5000’s (with powerful class D amps) is all you need to spend.
I haven’t auditioned the NS-5000 yet, but I hear a lot about them and the feedback is always positive. Folks who own them rave about them, including some members here.
This post motivated me to try my $2000 Schiit Wotan amp, that I rave about on this site, on the NS5000. The Wotan is now perfectly broken in. I have owned a few Class D amps and liked the Wotan more. It is a Class AB amp with some warmth and great bass control.
The Wotan immediately sounds different. It sounds pretty good but compared to the CODA #16 that is normally in place it is missing a bit of that rich Class A sound. I think you need some really great amps on the NS5000 to make them shine. I would not use any Class D with these speakers.
BTW - the NS5000 + used CODA #16 cost me a little under $20k.

