Need floats for my Protech Cougar

[Flying Scotsman]

I have a Protech Cougar and i have a Lagoon in front of my holiday house and i NEED floats. I need some plans for floats and an idea of how to rig it up or a suggestion of a commercial unit avaliable in the UK or the US as a last resort. Any help Please.

This is the plane, Flys well can't wait :p