Ok here are some updates.
as I was waiting for the glue to set in, I worked on the teeth:
Drilled the holes
cut the gaps out
then I filed them down
Not so bad
I got a little brave and I drilled holes in the dimples and added some screws to see how it works out (only the screws so I could take them off with ease):
I noticed there was an extra dimple on the helmet's left side. Any Ideas why?
It's right side
It didn't really align right for me, it was a little high on its left side
This is best I could adjusting it.
I'm going to plan it out again tomorrow, maybe make a new hole on its right side to align it better or add the rest of the screws and see if that helps.
Please note that it might just be my helmet, I don't want to discourage anyone since it's my first build (rookie mistake?)