I have a flat bed trailer that I carry my quads on and used to carry my Harley on. When I got to a campsite I would unload the toys and then I had a wheel on the tongue jack of the motorhome and I would push the trailer by hand wherever I wanted to keep it. An enclosed trailer is going to be a little heavier, but as long as you're on fairly level ground if you get a wheel for the jack, you'll probably find you can push it around fairly easily. They also make dollies that are designed to lift trailers by the ball hitch and you can push it around with one of those too. And if it's too heavy for that, I've even seen little electric and gas powered dollies that are designed for moving trailers around.