Ive made a box that can hold the camera, Mic Mini TX and RX, additional SD card slot, 2 slots for the screw, 3 battery slots and 2 ND filter slots. ive made an extra slot at the bottom to store other things but I'm currently using it as an additional wind muff storage. The action camera can be mounted with the cage that came with the camera, do let me know if there's anything that i can do to improve the design! oh and a M3 30 MM screw is needed for the hinge.