Thank you, Mike, Steve, Bob, Gene!
Steve, by all means borrow any of my photographs and doctor them up at will! This is a quick mockup that is approximately what you drew, I think.
I am going to handle the slope in front of the track rising to the left is to make it a large fill. Most of these tunnel/underpasses I see are tunneling through two-track fills, some rather high. That will leave a relatively flat or rolling area to the right for the farm. It is purely by accident that I now have white on black, which does show up nicely for photographs.
Bob, it is easy to miss something for sure. I am doing it all the time on other threads. I think I see what you are getting at. The road would travel in between the two tracks for a ways, which is a great idea! I will have to set something up and take a photograph or two of that.
Gene, as with my reply to Bob I need all the input I can get. While I have built layouts in HO and N scale, none got this far with scenery since an N scale layout, I dismantled in the mid '90s when we moved back to Western Pennsylvania from West Virginia. The rural part of that layout was at a rather nice level of finish and I was in the process of developing a town that had buildings and streets on several levels. As I recall, my streets were sections of shirt box cardboard cut to length and width when I discarded all of it.