RE: removing blind nuts?
I flew nearly 10 Gallons of glow trough that plane...I still have it and the backup I bought , just before I moved completely to gas.
You really don't need to do that. The LG is fine and the Gear Plate is fine. Just fly it... it floats-in for landings.
If you feel you are not ready, just keep flying your old plane until you feel you ARE ready. The ST wil really teach you how to fly.
Enjoy!!