The F206’s are also $3500. So unless you are getting a discount on either/both, that would be $6000 with the Halo.
I think spending 50% of your budget on the amp is very wasteful.
I would get an Emotiva PT-100 + XPA- Gen3.
That leaves $3700.
A similar company to Ascend Acoustics is Philharmonic, and their tower, the Phil 3. It’s better than the Sierra tower, and it has more then enough bass.
There is also the KEF R700 which is also $3000 right now.
Room treatment is also important.