Alternative swinging arm trailer

[Donnyboy1]

Can anyone give me any reccomendations for alternatives to the indespension roller coaster 1 or coaster swing?
Or even the next up with gvw of +750kg?

I've been looking and find it hard to see any alternatives? Surely there is more competition in Ireland that I haven't found?

Best I can do is Extreme Marine's set of flat pack trailers in Southampton?
http://www.extrememarine.co.uk/extreme- ... 2&sort=20a

Has anyone tried Extreme Marine or can anyone suggest alternatives?

Edit: its for a small 15ft Orkney Dory center console.
I don't know the dry weight of it, and Orkney can't seem to remember (its about 18years old)