ANSWER: Versahaul does not recommend attaching the versahaul to the back of a trail. The trailer will become back loaded and the the trailer will violently fishtail.
The VH-55 RO carrier has a 71.5″ long rail and a 500 lbs carrying capacity. This carrier has a towing feature behind it as well. If you have 300 lbs on top of the carrier then you will have 200 lbs of tongue weight remaining behind the carrier to tow. Hope this helps. You can purchase the product from our internet dealers or from a Versahaul dealer in your area http://www.versahaul.com/dealers.php
The VH-55 RO MSRP is $503 with the carrier shipped to you in Minnesota.