You don't need a monster budget for an auro 3d setup.
No, but it helps. The Revel Salon2 speakers retail for $21,998. Stereophile (May 2019, Vol42 No5 pg 117) has a good Follow Up article, the speaker hasn't changed since the
June 2008 Stereophile review.
Both Revel and JBL are owned by Harman International Industries. All I get from my business is free wood which isn't a bad deal either.
Based on the Stereophile Follow Up article I can see why Dr. Toole had to high-pass filter the Salon2's at 80 Hz, the speakers have strong bass to 16Hz and wall mounting certainly boosted that.
Great system and photos, thanks.