New or second hand ?
He should gland listen to as many as he can, .
+1 a rare opportunity.Wilson Duettes in the classifieds.
Well below budget, my friend has B&W CM9s, very nice with his Yahama AV amp. (Another friend has older B&Ws with a Denon AV amp as it happens, also works well.) Worth auditioning anyway.
You got to buy 2nd hand , you will get 2 or 3x the value.
Vivid audio K1, meridian DSP speakers *no amps or dacs required* , ATC etc..tons of good stuff at the 5 grand mark 2nd hand.