Keith,
Wow. 34 pages of suggestions and recommendations, you must be going crazy. I'll add my (unpopular) 2 cents then. I have yet to hear any horn speaker that was satisfying and moreover, a true full range speaker. Some impressive midrange horn speakers are out there but that does not a speaker make, at least for me. The AXPONA show hardly convinced me otherwise. I thought the Avantgarde's I heard were horrible, and same was true for all other horns heard at the show. (Frankly, I've heard Klipsch La Scalas sound better than anything at the show). But as you know, this is clearly a case of vanila, chocolate strawberry. "You pays yer money and takes yer choice" holds just as true today as when I heard Paul Heath first say it 40 years ago. . For 50K, there are a number of speakers out there that are attractive. I've never been a fan of YG, but the Hailey 2.2 was very impressive at AXPONA in a small room. Wilson Alexias are also in that price range, as are the Magico S5 MKII, another fine speaker descended from the "new" Magico sound of the M-Pro's (versus their original "fry your ears on their tweeters" sound of earlier models). If you have the room, there are even a number of Wilson Alexandria S2's out there in the LA area that can now be had comfortably under 50K. Good luck and have fun.
Marty