Question: 2EX or Horizon Center for mains

[Neotinto]

Finalizing selection of speakers for my setup.
Pictures below - media cabinet is here to stay (spouse fav), so we have to work with this.
Two setups I am considering – below.

IMG_5047.jpg

Characteristics:
• Shelf dimmensions: width 60'', depth 16'', height whole unit 26'', heigh each shelf 10.7''
• Top shelf will hold TV
• Subwoofer NOT an option: won't fit on shelf, and otherwise spouse wants to limit number of boxes in the room
• Listening position 11 feet away
• Room opens into nook (open space) and kitchen (doorway)
• Receiver will be Denon x3500h
• Speakers ideally on middle shelf, so that TV can be larger

Listening preferences:
• 80% music / 20% movies
• Low-to-moderate volume (got a 2yo child, plus neighbors beyond living room wall)

Setup 1:
2x Sierra-2EX in horizontal position
RAAL tweeter will need to be rotated
Distance between speakers: 32''

Setup 2:
2x Horizon Centers RAAL, in horizontal position
Distance between speakers: 14''

Questions:

1. Sierra-2EX: how hard is it to manually rotate the RAAL tweeter at home?

2. Horizon Center RAAL: distance between speakers 14'', too close together to create a stereo image?

3. Horizon Center RAAL: What is the exact height of the speaker? 11'' exactly? Or otherwise? Height of shelf is exactly 10.7''

4. Any other thoughts?