Hi,
Get your subs, enjoy them.
As for your bottles, use a dab of blue tack under each one. Issues solved. Anxiety free. Nice lighting!
Atmos 2 channel isn't worth it compared to 4 channel. You'd be better off doing 5.2.4 than 7.2.2 if you want to try Atmos; with a 9 channel processor. Or 7.2.4 with an 11 channel processor. I really wouldn't bother with just 2 channel Atmos, you'll get so much less out of that compared to good front stage and dual subs. And the immersion and directional of the audio is only going to start with 4 channels of Atmos; the 2 channels over head on their own have no direction, just "voice of god."
Very best,