My concern with a black and white scheme and the look you are going for is this: the typical "modern farmhouse" or other white with black window houses generally have pretty balanced massing (if not nearly symmetrical on some elevation), and a uniform window size and placement. Your house, a 1970s rancher has a functionalist window placement, sizing and placing the windows based on the inside needs first, rather than the facade, and the windows are kind of small compared to wall area, which is also typical of the style of house you have. I am not sure but I think a pure black/white scheme would emphasize some things in not such a good way. I would consider reversing the scheme in a way and doing a grey house with white trim, unless you are going to enlarge the existing windows and add more. Or a white house with grey trim, not something so high contrast.

At long last I think we have decided on our palette: SW Alabaster - on Siding, Foundation, Garage doors, Trim; SW Pavestone - Shutters; BM Wythe Blue - front door and back door. Shutter dogs, modern farmhouse exterior lights and hardware - black. I fell in love with this palette and after testing it on our house feel like it's a good fit. Any thoughts or ideas welcome!! https://images.app.goo.gl/im4H8sR7ungu2TjA7

I'm not recommending all these various windows, just seeing how they might look. Generally, 2nd floor windows would be shorter then those on the first floor. Is there a dormer on the back side of the garage? If not, maybe flip it from the front to back. For siding, you cannot go wrong with using all lap. B&B is trendy now, but I've never seen a real farmhouse with it. The image also shows brick up higher than the foundation that was showing, so the builder would need to place the floor framing inside the foundation instead of on top.

What about a one-story cape cod like design with a back extension? That way it looks small and modest (and thus historically correct) from the front, but you still get the three car garage and whatever else you need on the back. I am aware that the cape cod home is a Northern style, but perhaps you can adapt it to a Greek Revival to fit with your neighbourhood. This is sometimes called, "big house, little house, back house, barn." Building in stages has a long historical tradition and these charming structures showcase that. Here is a website talking about this idea: http://arkitekturalsphere.blogspot.com/2009/08/ne-connected-farms.html