I really like this kit and it looks fairly easy to assemble. However, one of the things that struck me was that the window proportions are too tall. Originally, the diner would have had windows with a top sash or transom that had stained glass as shown in the attached photos.
I thought it would be easy to use a permanent (orange or purple) magic marker on the back side of some clear plastic to simulate the stained glass. That failed miserably. So, I'm pondering somehow gluing colored tissue paper to the panes or hauling out my acrylic paint and trying that.
I don't have time right now to experiment with whether the upper sash will be glued to the inside or outside of the model. (Lots of these diners have outside window trim, which makes it look like the upper sash is on the outside.) Unfortunately, the windows on the model were not cut to a consistent size -- some are wider than others, which may add to the challenge.
What the windows should look like. Note the stained glass and added trim:
So, instead of grappling with the windows, I switched to thinking about how I want to design the chrome back splash panel inside the diner ... a much more manageable project.
Tomlinson Run Railroad
