I'd been sitting around, not building my helmet for a while and I had a bit more free time the last two weeks so I figured I would get started. I'd already cut all the parts from cardstock but the assembly of all the curves was fairly intimidating. My anxieties were confirmed when I struggled to wrap the facing parts of the pattern around the "disc" parts of the pattern that eventually get removed but are necessary to build the proper shape. My measurements must have been off when I printed because nothing fit right. Still, I struggled, folded, and even cut my way into forcing the paper where I wanted it.
Here's the result.

I'm not worried about the sizeable gap in the front since that can A) be filled with another strip of cardstock, B) hide underneath the Din Djarin-style mohawk/ridge I'm planning to add, and C) potentially be necessary to fit my giant head. I'm just surprised that's how far off the sizing was in my prints. Overall, I'm pretty pleased with the way it turned out. I'd have taken more pictures of the build process, but there's plenty other threads on here that already do that and got a cleaner result.
Next steps: strengthening, sealing, and sanding. I've heard fiberglass resin is usually used on cardstock or cardboard armor; is it also used for helmets? Or is it not a great choice because of the toxicity? I know that's mostly in the fumes from the wet part of the process, but does the smell, and the danger, linger?
What's the best way to transform this into a durable, wearable
buy'ce?