You may possibly find better, since you have a decent budget, but the first thing that comes to mind is the
Ascend Acoustics 170-SE.
- Easy to drive (663 will do just fine)
- 12" x 9" x 10"
- very easy to wall mount
They are a great value, just place them as well as you can. Not too close to corner/boundary if you can help it, and hopefully not way too high... but ya gotta do what ya gotta do. I think that these would be more forgiving in placement than some others because of what appears to be very good off-axis response. But, try your best anyways.
