macktruck Wow, thank you so much! <3 Really appreciate.
Spartan55 Unfortunately, yeah it is expensive. 50$ + shipping. Still, IMO it's an amazing prop and I'm totally in love.
About the helmet cast - thing is that the helmet is inaccurate with many details... So, you can either keep it or sand it down - but be careful, you could make a hole if it's hollow inside. It's up to you.
Normally, in the area underneath the visor there is no part like that at all - both going into the helmet or protruding out, but like I said, the helmet cast has many inaccurate parts.