One more time:
If you go to the (italian) site of the manufacturer, first it shows that they accept all major US credit cards. You can email them and see if they will sell/ship direct. If you go to the map it pops up a link for hobbypeople USA, but if you click on THAT link you get the British supplier.
THEIR website plainly says:

* We ship worldwide at very low shipping costs! *

Most X-treme Composite models Free Shipping within Europe!
All ARC kits shipped World Wide at NO EXTRA COSTS!
No extra Tax will be added here or at arrival, and shipping is free!

They also accept US credit cards.

So finding a Beaver and some floats is merely an exercise of sending some emails and asking the question.

It might take 2-3 weeks from europe, but what's the significance of that in the overall grand scheme? (Or in Tennessee, we say "What's time to a pig?" )

If you want it you can get it, just maybe not with a local phone call in Calif.

I've been on this forum for years and nobody ever said anything negative about the Modelfly planes or the floats. It might be worth the extra wait. (And some extra bucks- with the current exchange rate).