I’m not trying to discourage you from experimenting. Nor am i suggesting that you wouldn’t be happy with the result. What I am trying to convey is that there are compromises in pro audio gear you should be aware of. Just because they’re “pro speakers” doesn’t make them better than home speakers. Again - engineering is engineering. Tell the engineer what’s most important and they design accordingly.
On the question of imaging. You mention off axis response. Pro touring speakers are designed with relatively narrow dispersion intentionally to concentrate that acoustic energy so that it makes it to the back of a large venue. It also helps reduce the smearing from side wall reflections. If you widen the dispersion - you diminish its “throw”. If you’ve ever walked around a venue doing a sound check - moving just 5 feet in any direction you’ll hear the sound change - sometimes dramatically. This is due to the phase cancellations of the multiple speakers throwing a narrow beam of sound. You don’t notice it during a show because you’re seated in one place. Move around before a crowd gets there and it’s pretty remarkable. So, pro speakers in home - unless it’s a very large room - may seem “beamy” relative to home speakers.
The other element affecting imaging is the ringing cabinet. When a driver moves - it makes sound. When a cabinet vibrates, it makes sound which competes with the drivers reducing imaging. Personally speaking - imaging is over-rated. But I like my speakers to disappear and you probably would find pro audio speakers don’t disappear. Full disclosure - I’m extrapolating from what I know. As I haven’t tried pro speakers in my listening room, I could easily be wrong.
I actually hope you try it and let us know your findings.
Best,