Hmm...horrow flick you say?
Freddy vs. Jason!!! Whoot! The bloodiest of 'em all!^^ It shall haunt you well.
For the Akabane cosplay, I cout say you need a trenchcoat, but it should be thinner than usual, like with out the wool inside the coat. It should be soft, using leather, you end losing a lot of physical freedom in the cosplay since leather can easily tighten on your body.
The hat, more or so, you could get a traditional cook cowboy hat and modify it to match Akabane's hat, it should be easier to wear than a custom hat.
The gloves? I've found the official ones sold online^^
Here you go:
But I suggest you use dentist gloves and make some modifications, too.
Hope I helped^^