Hi all
I found VH-MGK owned by Kimberley Air but no others. I also know of NTK on the Gold Coast but it shows on the register as normal Tricycle Gear.
My next option was to look at buying one and maybe fitting a nice set of Aerocet floats for the weight saving.
I also know of VH-FKS but it is on amphibs and has a small useful load, no good for a scenic float operation.
Cheers
Rocket