Best near wall high end speaker

Given your placement options, I think 10k is too much to spend.

The Wilson Audio Duette (version 1) is designed for near-wall or free standing application (the version 2, current model, is ONLY for wall placement).
There is a pair for sale (here) for $5,500 but without stands.
I'm sure Mr. Wilson would be happy to sell you the stands.
Hope this helps.

So 12" wide and 12" deep, up against the wall. Hmmm. Soundstage depth will be limited, but you will have generous boundary reinforcement, which can be beneficial if the speakers are designed to take advantage of it.

Can you tell us the approximate room dimensions? How close to the corners will the speakers be? Is this room open into other rooms (open floorplan)? Tubes or solid state?

Thanks.

Duke