are their enough heads with the spike helms to use for each figure in the box?
Community coordinator for wargames atlantic here,
Yes, you get enough of the 4 hat/helmet options for each of the 30 miniatures.
As to the arms, This is the first we've heard of such complaints. There are various painted examples up on the internet now. I enourage you all to hop on the wargames atlantic legion facebook group if you want some more examples.