Since space is an issue, have you considered the Architecture series, like the W22's. W150, etc. Not sure if this would be an option as it sounds your in the middle of construction.

I don't think you would have to have the m60's a foot from the wall, many people have great success in the 4-6" range. You can always slightly toe in the 60's towards the listening position.

The 22's are great also, especially when matched with a sub.

Randy

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