Get a glass engine mount. The stock metal one is heavy and prone to failure. The plane will be nose heavy as hell (especially with a 4 stroker) so make a hatch as far back in the bottom of the fuse as possible and mount the battery there. Use tie wraps to hold the battery in place and an extension for the battery leads. Be careful when assembling the control surfaces and servos. Mine and many others have a lot of friction in the control rods. My control surfaces are a little stiff at the hinges too. I've also heard the fuel tank can split but mine is ok so far. Try to use z bends instead of 90 degree bends in control rods.

I love the plane. I run a 46FX in it.

Joe