I believe any locally available small utility trailer can be adapted to take the Weta & dolly. Saves having to ship the trailer with the boat from the dealer.
That is exactly what I did with my Antrim Wing Dinghy. It only came with ply/glass dolly. I picked up a Northern tool small utility trailer, took the casters off the dolly, and bolted it down. Light and very easy to do at a nice price.