Here we go again. You're over thinking it.

CA as suggested, maybe a BIT of CF and/or tri-stock at the landing gear and THAT'S IT!

Learn to improve the pilot, so you are not so concerned.

That plane was built with light ply purposely. What looks weak to you, is actually far stronger than you think.

Remember the balsa planes you are used to look more built up, but their structural material is weaker than the ply.

With planes of this type of build, as much far heavier ply is eliminated without sacrificing strength. Don't be tempted to "undo" the design you'll regret it.


Remember that if you make an area FAR stronger than before, you'll end up with breaks in a more difficult to repair area...

e.g. there are those who go nuts worrying about aluminum gear being weak, so they beef up the gear, and it rips the entire bottom fuselage out on a landing.
Had they left the "weak" gear in, the gear would bend out and absorb the load by doing so, or have resulted in far easier to repair damage.