$5k or less speakers (used or new)?

LSA Statement 20s available here new for $3999 on sale and come with nice speaker cables as a bonus, and they offer a 30-day, in-home trial. Part Time Audiophile did a nice review of them where they compared favorably with the reviewer’s $25k reference speakers, and their sound characteristics seem inline with what you’re looking for. I think Salk is also an excellent recommendation. Best of luck.

Another Salk recommendation. Also the great Magnepan 1.7’s. 

Over time, I got a feeling that it is hard to pick bad speaker for $5000. It comes down to your preference and desired sound.

Check out Scansonic.  The MB3.5 B has a side firing woofer and delivers bass response below 30hz.  

The ribbon tweeter provides wonderful detail and integrates with the other drivers brilliantly but is not going to forward like Paradigm.  

Full disclosure, I am a Scansonic dealer but this speaker is in your price range, works with your equipment, makes sense in your room and delivers the sound profile your describe.  

Take a look and PM me if you are interested.  

Harbeth 30.1.