The projector is good, I would likely opt for the JVC in that range over the Sony as it will have better handling of HDR content, by a fair bit, and will deliver better overall contrast.
I would personally take a long hard look at the room itself for front projection. The raised open area is going to be interesting for speaker placement, especially with how tall it is. The colors through the room should be darkened, especially the carpet. And I'm not sure how lights are laid out within the room, especially ceiling cans and lighting over seating areas with dimmers, etc.
The screen should be really solid for the setup. I'm a big fan of Seymour.
I would personally stick with Denon, or consider Yamaha, but I would avoid Onkyo/Integra. They just seem to be on life support at this point. I do wish them well, but my money won't be supporting them.
I will not be a judge of the speakers you listed as they all sound different and it will be your ears. I'm simply not a major proponent for or against almost any speaker brands.