Which walnut? The nutmeg or bordeaux? The nutmeg is the only one I don't like. Looks like orangutan hide.

The M3v4 is real nice. Good call on the M5 and 160.

That Rotel may not be enough for the M5 depending on room, listening distance, desired SPL and whether or not you're using a sub. It's a real swine.

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