The “top” electrical board. Our board this year was constructed as two attached levels, with the top one mounted on a hinge. The whole thing can be easily extracted as a single sub-assembly by sliding it out the back. Wiring between the levels passed underneath the top board, and down from the hinge.
What size wires (AWG) are you using to supply voltage to your motors? Those wires look a little small to me.
12 gauge stranded for the 40A circuit breakers (white/black twisted pair), 14 gauge stranded (red/black twisted pair) for the 30A circuit breakers, just like the manual says. Trust me… we got 500ft rolls of the stuff last year!
How thick is the lexan?