The AVR would have only half an inch space on all sides so I placed it on top.Two suggestions,
1. Move the AVR to Centre channels cabinet if possible and the Centre channel to AVRs position. Centre channel will be too low and the cabinet might absorb most of the frequencies.
If AVR is a tight fit in cabinet you can keep the AVR next to the Centre channel on top. AVR will require good ventilation.
2. If possible move the glass table away, soke frequencies and direction will direct hit the table first than you.
Until surrounds arrive, listen music on the system in stereo or pure direct. Enjoy it.
I was thinking of placing a triangular block under the center channel so it is pointed to the face. I've got a small wooden piece to do this. Also, is not visible in the picture but the front of the center channel is half a centimetre out of the cabinet.
The glass table will be placed away while watching movies