Thanks for the quick reply. My issue is that every build thread I've gone through either the helmet was already assembled or it just gets posted fully assembled. The construction of the SC helmet is different from the link you shared - I had already come across it. The back and the cap are separate with SC, so I'm not sure if I should just E6000 the ridge. Seems like it might not be the most solid way of doing it.
I will try e-mailing to see if I can get some instructions!