I might be able to make something with a fuselage like this bonanza by rctestflight
but nothing like a balsa plane!
And, for other tips, you should watch more of his videos....he has tutorials on soldering, connectors, and many other things.
And, here's a tutorial by him, on how to make a ribbed wing(not on his main channel, so that's why I put it here). I've tried it and it works!