Terry the street front facades in BoB display are Build A Rama and I'm hoping they make more of these. I do have some of their buildings but found that the actual item is much darker [too much smoke damage, solid smoke damage over the entire structure] than in the photos of the product. The ones I have are 122 and 109 and they are very dark which hides the detail and provides no interest. So not happy with that. Also, on these shelves which are 30" wide and 10" deep there is not a lot of room structure wise for anything but facades.
The JG buildings are more expensive, but look so real, collectables in their own right. There are 10 M38 buildings in the 1940 display @ I think ~74$ each, but I guess you only buy them once. I picked up a couple at a time until I had enough to do something with. I am hoping John will do another series like this M38 series - modular in another style of French building. Russian Factory complex would be good.
I also have the Eastern Front house and Western Front Farm House from Figarti. They are great looking, but full 1/30 scale. It would have been better if they were somewhat compressed as they are very large items for a shelf.
I have many of the JG bases for BBA and BBG sets. These are very nice 6" square bases made for the sets. Here are a couple... each is 12" deep by 30" wide or 10 6" squares. These are in a larger cabinet.