Crossover Fan Fiction

Title: Place Beyond The Sun (Chapter 2 - Finding The Ways)
Author: fenrischained 
Fandoms: The Dark Tower, Hellblazer
Rating: Um... never quite sure about these... PG-13?
Warnings: It's Constantine, so there will be a lot of bad language.
Character(s): The first couple of chapters are set in Constantine's canon, so Roland is the only DT character.
Summary: The third door Roland opened could have led to anyone. What if the person it had led to was somebody ruthless, battle-hardened, and cynical - in short, what if it had led to John Constantine?

Currently unbeta'd. (Chapter 1 is linked above the story itself, if you haven't read it)

2 - Finding The Ways

Hi! I'm Jormy - or Jormandugr, if you prefer, or Sylvia if you want to get boring and truthful.

Essentially, my status is this; I am writing a crossover. It is a Hellblazer/Dark Tower crossover, as the more astute of you may have guessed. *pokes title*
However, there are two small problems:
1) I am incredibly paranoid about my characterisation (especially of Roland) (ironic juxtaposition with icon, y/y?)
and
2) I am a Brit.

The first would be one hell of a lot easier sans the second.
So what I am really after, to be honest, is an American with a decent knowledge of TDT canon, who can check my characterisation and also give me advice on New York slang, geography, shops, jokes... you know, the sort of stuff that's slightly necessary in that context? Preferably to go through spelling and grammar as well, but, well, I can get someone IRL to do that. xD

Oh, and lest I forget, if all goes according to plan, this fic should eventually span everything from about two-thirds of the way through 'The Drawing of the Three' to the end of 'The Dark Tower'. It will be long. There will be spoilers. It will take months to write, let alone beta.

However, I have been searching for a beta for it for whole days, so if you'll do it, I'll just about love you forever.

Tchuss, alles!

(If I've made any massive and stupid mistakes in this post, rest assured that it's probably because I'm writing it at 3AM. I swear, I can write coherently when I've slept! xD)