Finished analyzing the main structure, some problems:

The structure of which main grip is connected to the main body may not allow the wiring for the main solenoid to pass through to the back. Upper forebody may have a bending moment on the in and out direction against the image. Mode switches has little to no room for articulation and assembling. Locations for other switches and potentialmeters are not arranged. Not entirely sure how lower front and upper middle structure can be fixed onto the main structure.