I have had 2 BIG lazy Bees, mounted on the same set of BJ floats. (but mot simultaneously). The mounting was ultra simple. I just used wheel collars to hold them onto the stock landing gear wire. I added another lg wire under the fuselage somewhere aft and locked it in place with the hat-shaped landing-gear mounting straps. Before doing this, I slid the wire fore and aft to set the incidence.

LzBs are tall and narrow. They do not like to taxi crosswind. They like to flop over on their back in a crosswind.