If you have skid plates below the frame, not sure the newer ones have them, at the rear you just take it slow and slid her on. That ramp should not be a problem as there is no tide run on the lake so there should be little height difference . However if you ever use the Canadian Ferry system that is a different story, those ramps are steep. I suggest to them that they buy paint before I go on as I take the paint off the ramps going and coming and lift the wheels off the ground.
You will have to turn the propane off on most ferries, but that is a short crossing so the refig. will be OK. When I cross to Newfoundland or the Queen Charlottes we freeze a couple of soda bottles filled with water before hand and leave them in the freig.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles