Looking at the photo. why don't you just move the receiver to the right and then put the M3 on the same shelf as the reveiver? there is nothing writen in stone that a reviever needs to be center on the stand.

Anthem: AVM60, Fosi DAC-Q5
Axiom: ADA1500, LFR1100 Actiive, QS8, EP500, M3, M3comp, M5