I had this in mind but @Sarcomere did it first. The front deflector could be added to a folded aluminium sheet structure to add roll stiffness… the back can be hollow and will let you organise the cables freely. Ideally, the whole thing could be recessed into the board bottom… This open folded box with front deflector could be enlarged x9 to welcome a flat SK8 battery, an ESC, a receiver and become a DiY Vortex with waterproof elements… kind of removable gun case bellow any board fitted with US rails or a 90x165mm screw pattern.
