Thanks Sheriton, I'll bear that in mind. Other than esthetics there is no reason for the rack to face front so I could just as well turn it around and have the antenna's face the stage. I realize I'm making a lot of fuzz about an inch of space here, but I'm on a mission of creating a PA setup that will fit in the back of my SUV along with my kb gear. Compact is king here.
The set is intended for small rooms and even smaller stages, so I don't anticipate major issues with reception or interference but we will see.
Anyway, I appreciate the support. I've been using wireless equipment forever in ignorant bliss, never having any issues (except for the one time when I started using the XD-V75 and found out the hard way that channel management becomes a thing when using a mixer and a mic both operating on 2.4 Ghz.). Under the circumstances it may be a while before I truly get to experiment with a full setup, but I'll mark the warning and pray I'll remember when the time comes.