Your off to a great start! I really like the front of the building. It sure brings back memories when I use to shop at one. I see that you even found a picture of an alarm bell. Now you can use one that I did on my 3D printer. I don’t know about the slopping loading dock. Can be a big problem on an existing layout. Can you make a two versions. One with a slopping loading dock and another with a non slopping loading dock?