Ray,
Your buildings look great! Yes, the buildings with offices in the upstairs is a possibility too. It reminds me of Philip Marlow's upstairs office. Years ago, our insurance man had an upstairs office like that. The awning looks good, and awnings are definitely a good detail to add.
Bill, That factory is huge, and the planned one with it will definitely dwarf the trains, but suggest a big reason for rail service!
