Welcome to the forum, Errol!

Can't see a thing wrong with your choices (pleading ignorance when it comes to projectors and screens). If the budget would allow, you might move up to an EP500 or EP600 subwoofer for a space that large, but I don't think you'd be disappointed by the 350 (DISCLAIMER: I am a biased EP500 owner ).

The 2807 is highly regarded, and I have a 2910 which I love. The 60s/150/QS8s will do the job admirably.

It seems you've done your homework.

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton