Yep an EVA is not a beginner helmet. The visor problem can easily be solved by using slyfo's pepakura EVA helmet model. It also comes with visors for the helmets so when you print it out and put it together, you can glass the whole visor and helmet, and the just cut out the bottom half of the visor and attach a real one. However, you would need to add details with bondo's body filler or some other medium.