I was 12 yrs old when I first saw SW A New Hope in the movie theater. Like many, it was left to our imagination to fill in the back story/stories of where all these SW characters came from. We all know that Boba Fett doesn't appear till ESB(excluding ANH SE). So thirty four years later I can now create my version of where Boba Fett's look (armor, gear) came from. Being ex military my self, it is easy to imagine Boba Fett drawing from military surplus for his helmet and armor.
With that said, here is my paint up of what Boba Fett's helmet may have looked like prior to Fett owning it.
I acquired a helmet from BGHunter(aka Jinto) about six months ago. Decided to make it a Mando helmet rather than a Boba helmet.
Started by filling in the dent and giving the helmet a base gray primer and silver paint.