I am about to make a large purchase for a voice over studio. I figured I would run it by the gurus and hopefully get some feedback. I just want to make sure I'm getting the best bang for my buck. I'm thinking about shaving some cost by switching out the symphony for a cheaper converter. Here is what I am looking at
This will be 2 channels running simultaneously as a failsafe and the 416 will have a deeper tone vs the re320 being brighter allowing me to blend the two channels together. Please advise on alternate gear or necessary plugins.

MKH416-Avalon 737\
=Apogee Symphony 2x6-iMac-Logic Pro-Yamaha HS8
RE-320-UA LA 610/

$6,095 total with cables

Also I am looking at a 4x6 booth from vocalbooth.com which runs $7,680

The room is about 10x10 and is next to the restroom so you can hear flushing through the wall.

Please Help!!

I'm thinking about going with the apollo twin instead of the apogee symphony.