There won't be a problem with the mains that far apart for movies. 2.1 music is a different story. It's not the width that will kill the holography but rather the lack of distance from the front wall. Expect bass issues also but EQ will fix that.

You need to sell that home and start over. Punt the wifey too. Just kidding...don't sell the home. smile

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated