The frame is indeed very nice.
On that copter we used:
FPV250 frame
4 x Emax 12A ESCs (ours have some bugs in the FW, so better get different ones for 12A)
4 x ZMR 1804 motors
inf x 5x3 props
1300mAh 2S Li-Po
Navio+ (RPi A+)
Power module
Now everything is hard mounted, but I have developed a custom laser cut mounting plate for Navio+. Will pick it up from the laser tomorrow and if everything fits post the design files here.