I recommend that you don't shoot in black and white, but rather wait until post to grade in black and white. When you shoot in monochrome, your footage will lose significant detail. Shooting in color first will give you better contrast and flexibility when it comes to grading in post. And of course, if you want that unforgettable film noir look, you need some higher-wattage open face lights to create those harsh edges to shadows. Hope it turns out how you envision it!
I live in Ohio as well and also struggled with this issue. I'm a film student and started working on projects but could never find any actors. I went to my university's theatre department but yet so many actors there only wanted to do stage work. You will find a small amount that want to transition into film, but it's difficult to work with.
About a year ago, I found an online service called Breakdown Express. It's absolutely fantastic! There are two separate websites within Breakdown, Express and Actors Access. Express is for experienced, union actors. Actors Access is strictly for non-union actors, but a lot of times SAG-AFTRA actors will look for work under Actors Access as well. Posting a casting call under Actors Access is free, but posting under Express includes a fee.
I've had great luck with Actors Access alone and have found tons of non-union actors located in Ohio with long film, commercial, and theatre resumes. The best part about it is that all of the actors are willing to work for free. I always buy my actors food and offer a place to stay while shooting, but they usually will just take the finished film for their reels. Go check it out at https://www.breakdownservices.com and finally find some actors! Also, since I live in Ohio I might be interested in helping you on your film!
I would really not suggest the Raven as a first camera, especially if you are going to take stills from video. Yes, the Raven is an exceptionally excellent camera, but it's not great as a first camera and is relatively expensive for what you'll be using it for. The menus are also not the easiest to navigate. I would suggest a Canon 5D Mark III, only because its way cheaper than the Raven and you'll still get great quality images and videos. The menus are user friendly, you can put Magic Lantern on it for even more control over video and stills, and it has a wide range of great lenses available for it. Yes, the 5D III doesn't shoot 4K or crazy high frame rates. Who cares? It's just more data and time when editing. Also, as Michael Tiemann said in the first comment, natural light is thing that's going to kill your shots. You'll need to have fast lenses so you aren't jacking up the ISO and ruining any potentially good video.