After gutting the tank of its stock control board and replacing with the better receiver, escs and fpv system, I set about designed and 3d printing a new shell to hold everything in.

Building this thing was a bit fiddly due to its tiny size, but all of the listed components do fit,  after everything is soldered up and placed inside, the shell is screwed to the base of the tank with 4 small m2 screws.  The leds aren't needed but a nice touch in dark locations!