Cant I mount those svs speakers on the wall pointed down at me? I was thinking the same thing as you William.
So according to this one, you can mount them at the front height speaker location. My issue with that, is that being on the same vertical plane as the mains, I don’t see how they’d phantom image into the room that way, since the height speakers use the bed speakers to do that.
FWIW, when I was younger, I mounted a pair of 6x9’s in the false ceiling in my bedroom. I thought they sounded great(though I’m sure if I heard them today, I might be less impressed lol)
Even if you tried it in the false ceiling and changed your mind, ceiling panels are cheap.