now there's only one last passage to complete the front hull: glue together the two plates in the crack (first pic, a bit blurry, sorry!). the arrows indicate where are the seams. I expect a
possible gap, although very thin. anyway, I used the tip of a toothpick and put very tiny drops of white glue on the seams, like you could do with putty. in the end I squeeze a little amount of white glue in those little holes near the tips of the arrows, to fill them, and let all dry. again, this is possibly the hardest part of the entire model.
the other pics are about what I've done till now (more or less)