I never could quite square my OCD with having a 6-pane transom over the front doors and a 5-pane transom over the rear freight door. And since scratching a sliding freight door isn't that much harder than cutting down a Tichy 8125, scratch it will be.
I'm doing the transom window and sliding door in styrene (to give nice clean lines), and the trim around the whole kit and caboodle in wood (to show a bit more weathering).
Your Jefferson store looks good. Your attention to details, transom windows, interior details, i.e. picture in a picture frame, accurate framing pay off in a very accurate model. I can't wait to see it "planted".