I don't see anything daft about amphibian flying! I've done about 20 hours in the Teal in August. All kinds of fun!
I don't know about the British regulations applicable to these, or the relationship that the CAA has with the Norwegian authority, but there's one I know of for sale in Norway. A very simple, and economical amphib, which is a delight on the water.
This website might interest you..
Thurston Teal Amphibian
Here's me...
YouTube - 180 HP Thurston Teal Amphib doing Touch and Go!!
If you would like more info, PM me...
