Scale Seaplane plans to build UAV
I would NOT recommend a Buccaneer. Look at the full size with all its crazy rigging angles. Thrust, tailplane & wing are all over the place. I did build one in the early 70's, it's still in 1 piece, but it was a challenge. C of G ended up at about 10% for stability.
Build a non scale pusher with twin booms & floats.
Life is meant to be easy