Here ya go, Zippi.
As you can see, lots of interlocking pieces/parts here. Two good chunks of tri-stock on the inside. I added the extra ply "backers" for the blind nuts, and one small piece of tri-stock up top, but everything else is as it comes out of the box The motor box is actually the fuselage front itself; it is NOT a separate piece/part like on some of the larger planes.
No worries here, I think...
.