Cerjak, I really like the last helmet pictured in your post. The one without horns but of a nice classical form with a tall spike on top and two plume holders.
By the way, I often see people displaying these helmets with peacock feathers in the plume holders. Do we know that thats what they were intended for? Why peacock feathers? And always why 2 (as opposed to 1 or 3 or 57 feathers)? Sorry to derail...