I say get a Hangar 9 Ultra Stick 60 with a YS 91 and install a hard wood block behind the wing. This way you can bolt on a second landing gear and add or remove floats. It makes a great float plane and a lot of fun. I can convert mine from wheels to float in less then five minutes. I used the plastic floats which are made for the Ready float plane from Italy. The US 60 on wheels or floats will do just about anything.

Sung