You can tow it with a car
Not all Australian Touring Caravans weigh 8000lb, there are lightweight single axle models, like this 4,200lb , 22ft version that can be easily towed by a car.
Forum Discussion
Back in the mid '50s my dad towed a 45' mobile home from northern Minnesota to the Minneapolis area with his 1950 Studebaker 1/2 ton pickup with a flat head 6 engine. Early Airstream ads showed one of their trailers being towed with a bicycle. Just because it can be done doesn't mean it should.