If its your first suit, you might want to think about preordering, either in resin or foam. I'm not sure about foam, but DreamVisionCreations makes hinged and cut resin head blanks, if you want a more realistic look. There are a ton of tutorials online and on youtube, just search 'how to make a foam head base'. I cant really tell you which one to do, it depends on your skill level and what would seem to be the best option for you. There's tutorials by Tsebresos on youtube, and there's some tutorials on Cosplayhouse and whatnot.