Thank you all for your help. This is why the FISD is so awesome and helpful. BTW, Mr. Horseman, thanx for the rivet tip. I placed washers in and out for more support while using the screws for temporary fixation. The publicity shot used with the hero helmet is the look I'm going for. I tried to post a pic but it would not allow it. It is the one used for the cardboard standup they used to sell. I want as little as possible white showing, and the face is totally touching right up against the cap.
I removed the screws and played around with the face rotating it as you all suggested. To get the sides to overlap it was almost "move along" gap above eyes. I thought I'd move the face up farther into the cap instead of rotating it back but it is as far as it will go along the ridges in inside the back.
Here is the full profile. Face is butted up against the cap.
Full front view from slightly up angle.
So if it's rotated forward as much as it can, and the brow is even with the black trim, and most of the gap is closed, new rivet holes placed, is this acceptable? I know that these tiny gaps will be covered by the ears.