Hi all.
Too late Martin it's already been christened BDS Brians Ducking Stool.
The boat cradles fit over two dowels on the trolly to stop it sliding off when being wheeled about,The hoist base fits the same way and can be used as a straight launch after I've locked the steering.
It is simple to erect with only three wing nuts and four cut down metal tent pegs.Takes about three minuits.
The trolley is some thing else,The box is about 25 years old ex model aeroplane use.Modified over the years to suit many situations.The latest mods are two cut down lawnmower handles add four pneumatic tyres,brilliant for rough terrain,
Regards Brian