RC Box Traxxas TRX 4 with shelfs

I do the design to install my Graupner Reciever and my Graupner Lightsswitch in one Box with is nearly waterproofed. The two shels give the support for the electronic parts, the need to be installed with glue. The top cover is desinged to slide in and out, there no screws needed. To install the box to the TRX 4 you will need the original screws from the RC Box and two M3 nuts which are fitting in the two "nutholder" (sorry, missing the word) in the buttom of the Box. At the left end is a mountin