Naza FC and GPS mount for Tarot 680 Pro

Building my first multirotor, so I had to design a few parts to get things like I wanted them.

Wanted the Naza and GPS to sit perfectly at the center, so I designed this double layer mount.
The GPS holder can be found here:
http://www.thingiverse.com/thing:178714

The mount includes M3 nut traps.