With all the differences between models, has anyone added solar (roof) and lithium batteries to a 2021 Passport 199mlwe? Have 2 lead acid batteries now and want to upgrade for more boondocking. Came solar prep, just roof port and supposed to be wiring somewhere, and a Zamp side port. Thinking about 200ah system would be enough for our style, and keeping batteries charged. Have a generator but really don’t like dragging it out especially if in a campground. Appreciate your input.