I saw a company last fall in orlando with a crew cab isuzu and pulling a fifth wheel trailer behind it similar to a tractor trailer setup. The trailer was about 25' long, 8' wide with a ramp like a landscaping bed. It had large ZTR's front to back. It also had a single 12K axle with dual wheels under the trailer.
Knowledge is knowing a tomato is a fruit, wisdom is not using it in a fruit salad.