I'm planning a 136 wb high roof camper van and I'd like to put as much solar as possible on the roof. Grape solar makes a 180watt panel that measures LxWxT (58.27” x 26.57” x 1.38”) and I was hoping someone could measure the width of the roof. I was hoping to install them without any overhang with simple L brackets on the factory mounting points like I've seen others use on one side and the fiamma mounts on the other (with a custom bracket). Do you think a panel that's 58.27 fit across the width of the van? And do you think I could fit three of them on the roof plus a max fan for a total of 540 watts?