5.1.4 setup in New house under construction. Vaulted ceiling and open layout living room...

Building a new house and will have a 5.1.4 Dolby atmos setup. The ceiling is vaulted and it's an open setup so it will be challenging. My current reciever is an Onkyo tx-nr7100. LCR and surrounds are up in the air. Elac, KEF, Focal all look good on paper but I've never heard them in person (wife asked for white speakers..Hey I'm working it my best) I have existed with Klipsch speakers forever and am looking to move on.

The placement for the atmos are really racking my brain a bit. Any help would be appreciated. TV is not going over the fireplace but rather the right side wall if you are looking at the fireplace.

The pics below are of a very similar Floorplan house that is finished. Mine is still in progress having just had sheet rock installed. I'm about 6-8 weeks out. All the wires have been run. Rockwool insulation is in the walls that lead to bedrooms.

Any help or advice is appreciated.