If I go with AVM60 I already have a nice Outlaw Audio Balanced 7700 amp. For the 4 ceiling atmos speakers I would have to find another amp or amps to drive them. Outlaw has a 5 channel for under 600, I also saw on Amazon has some Onkyo 2 channel amps with good reviews for about 249, oh the decisions.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85