Construction issues

The armature i have recently been constructing is turning out to have a lot more math than expected, finding the correct angles that correspond with the size of each box is very precise, this shit is hard. note to self, next time use wire...  Armature is coming along nicely however, construction should be completed by today, now just to figure out the material of my "planes" and how to create this illusion of space, sinking back into the small square. Im thinking this is going to be the challenging part, from the side view i want it to look broken up but parallel, to do this i will more than likely have to mark the space between each plane evenly,  the problem is the size of the triangles, i don't know how im going to get them inside my frame or how to size them... all i can keep thinking is, this better f-ing work.