Don't make the mistake I nearly did and buy one of the many Bayliner trailers that are about cheap. Most still have an American size hitch on them which will fit loosly over your UK ball and is quite likely to 'pop off' on the road. They are not easy to convert either.
Some owners don't even know the hitch is the wrong size as the bayliner was delivered with a trailer that they've never used.
Great for launching trollies if you are not going on the road though, as they are made strong to carry the weight of the Lardy Yank boats.
Rogue, Did you ever buy the trailer offered with my Ocean 6.25 for a launching trolley?
RIBBED For extra pleasure.
Member of the ebay Blue RIB cover club.
Member of the Bombard 380 Aerotec club