One of the things that I have seen done was to use a topper shell to top a trailer, then a ladder rack on top of the topper shell. Lengthing the tongue on a utility trailer would a pretty easy thing too, the bolt method as stated by Woodsy makes a lot of sense. Greater tongue weight and tongue slightly down assists with the trailer tracking better behind the vehicle. Larger wheeled trailers are also better-better wheel bearing longevity. One could also make up a pigtail with plugs for the tongue stretching procedure. The dune complex south of Pismo Beach are very beautiful-have walked many miles there....sis use to live out there.