I’ve been considering a similar setup for my own vehicle and found that it’s definitely doable. I worked with
Solar Smart in Dublin for my home solar install, and they were really helpful with making sure the system was the right size and safe. For your setup, I’d suggest a panel in the range of 30 to 50 watts, depending on your battery and energy needs. The key is making sure your solar controller is matched to the panel and battery type to avoid overcharging or damaging anything. You’re on the right track with using an inline fuse too—safety first!