Regarding the visor, so it wasn’t included nor a template involved? I really like Boba Makers simplistic design he does for his helmets. I’ll share some pics of it here shortly. But as to the size/shape of the Redman Visor. If it was me, I’d trim a section out of a piece of flexible card stock and trim till I got it where I wanted it. Then transfer that to one of those Hobart Welders Visors you see on Amazon.
-Iron