Which integrated for Wilson Sabrina's

@cshadow 

And if you are set on an integrated, once again, Pass Int250 will be close to what you are looking for sound wise and will provide plenty of power and control. Used can be had in your price range. Another excellent choice would be a used Luxman 595 Class A integrated that you can find now for under $10k but again if you have a very large room and looking for concert levels it might not be the right choice. 
Gryphon and D’Agostino are unlikely to be found in your price range used but you can stumble upon a Gryphon without the DAC module in or around your price range if you wait. 

+1 on Krell.  Read the stereophile review by Jason Serinus.  I heard that set up on his system, and it was very impressive.

I realize this Vitus integrated is more than your desired price, but it’s about half its list price and may be a bit negotiable and should deliver just what you’re looking for. 
https://www.audiogon.com/listings/lisai451-vitus-audio-sia-025-receivers
I also heard BAT with an older pair of Watt Puppy 8s (I think) at a show it it also sounded really good, but that was obviously a long time ago but always left me with a feeling there was some good chemistry there.  Best of luck. 

Tweeters on the older Wilson models and on the Sabrinas are very different.
The W/P 8s that date back to mid/late 2000s used inverted titanium tweeter. Hotter sounding than the silk dome tweeter Wilson Audio implemented on the Sabrinas. With BAT you may end up taming a bit more than you intended.

Ultimately, home audition is a must. And unless it is possible or a decent return policy is in place, go used. You don’t want to drop this kind of dough blind buying a new component, end up not liking it and getting hosed on a resale.

I own a Gryphon Diablo 300 with Rockport speakers.  It is not edgy in any way and I can absolutely say it is worth finding somewhere to audition one if possible.   On the other hand a good friend has recently changed his system to a pair of Wilson Sabrina X and the Krell300i.  This is an excellent combination and I have really enjoyed my time listening to his system.