I think the roof of my boat is over 12 ft long. Lindy's was even longer I think. Look back to pics of my build and Lindy's and you'll see that with the radar mounted forward as possible and solar panels right behind that, there's still room for a smaller dinghy. Even if the dinghy covered the panels while you're running, when you get to your anchorage, you usually plunk the dinghy in the water, in which case the solar panels would be open to the sun when you need them most - at anchorage. So yes, if it's part of your design criteria up front, and especially if you tilt your for'd cabin windows forward, there's a LOT of roof surface to work with. 200 watts of panels makes a huge difference. Of course, you could also have some portable panels that you deploy at anchorage, plugging them in with MC4 connectors to permanently-mounted solar charge controllers feeding the house battery - if I was worried about power I'd explore that option fully, then look at upsizing the house battery system, especially with lithium.