To make you a secure panel for overhead. Being I also own a sign company, I had access to a .080 aluminum painted blanks. This is the same thickness as a STOP sign. Go to a local sign shop & get 'em to cut you a piece of painted aluminum and make the corners radius of 1 or 1-1/2" ~~~~ Get yourself a marine switch panel with fuses, ( ebay has 'em ***** $ 12.00) and run you a hot wire up to the switches, and then spider out from there ~~~
Get you some very fine sandpaper, and ruff up the paint on the aluminum, prime it with a Krylon quality acrylic, and paint it the KUBOTA ROPS grey color.