oxenos, I want one of those!
Funny you should say that as I am selling one (No, I am not advertising - the postage to Ohio would be excessive) I bought two, to use one for spares, but it has proved tough as old boots, and any repairs needed are easy. I suspect capngrog has the same model, made by Dyn**, and easily available in the States. As sold, the floats are fixed in the down position, but there is a whole website devoted to this one kit, and on it I found a way to fit retracts. Mine also drops little (inert) depth charges. I have not flown it off water - with a more powerful battery it takes off from grass, and the bottom of the hull is reinforced for grass T/O and landing. With the bigger battery, retracts, depth charge mod and paint job, mine is rather heavier than standard, so the handling is not quite trainer like, but it looks superb in the air.
Apologies for thread drift.