And now the doubt I really hope someone can help me with...

The next step will be to glue the neck to the body. But when I insert the neck on the guitar body and push it firmly, it leaves some gaps as I showed previously in this diary. I was thinking that I didn't need to do any major adjustments to it, but after the measurements, I became a little worried.

The alignment with the nut is straight but I don't think the angle is correct.

Let me show you.

Here's a picture of the alignment. I attached two strings (not guitar strings but I stretched them to get some tension and see if the alignment was correct).

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Now, about the angle. I put my straight edge against the fretboard and, with the tune-o-matic bridge as lower as possible, it hits the bridge.

But worse. It hits in the upper side of the neck way less than it hits in the lower side.

Click image for larger version. 

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(Upper side. It hits the bridge slightly)