I will add pictures of the oiled oak quartet single for sale. It makes a great center for Quartets, Fortes, Choruses, and other Heritage.
It is currently in Fort Wayne Indiana, but can be relocated to NW Suburbs of Chicago.
I think A3 would be where I start as that is Front Height Channels (Dolby Atmos, Dolby Pro Logic IIz, DTS Neo:X and Audyssey). Then A1. I think some are pushing the front wides as well. Maybe something to consider.