Dusty, congrats on your great HT and on getting selected for the monthly. My aspirational goals are similar to what you have, so I'm bookmarking this (and printing a copy, just in case) so I can keep it all in mind!
I can tell from your selections that you have a very good eye for optimizing quality and value, and so I will use your setup as a guide for my own HT. My HT is already similar in so many ways to yours. And we're likewise a family of 4 and love our movie nights! We have a black leather sofa, though I do kinda wish we had your seating (love seat and two singles), but it works well.
I'm glad to see your subs. Are you running 2 or 4 of the PB12-plus? The article says 2, but I thought the video mentioned 4. I have the same sub (in a slightly larger room) and am about to (finally) get another so I can have duals. (Just waiting on one of SVS's outlet deals!) I am glad to see confirmation that my sub can work in a system like yours.
Enjoy your movie nights! And your music! Thanks for sharing.