Thanks for the interest, guys. I have decided to go with a campaign written for another RPG system called Trail of Cthulhu. I was originally planning on running Masks of Nyarlathotep but I think I might want to save this one for a table top game. I figured I'd make an attempt to convert the campaign I've chosen to Call of Cthulhu but, ultimately, that seemed like a lot of unnecessary work.
So in the end, even though the setting is pretty much the same, the system will not be. If people are interested in still pursuing this, come submit a RTJ for the game, which can be found
here.