It's too bad that garage couldn't be called Wally's Service. It reminds me a great deal of the station seen in the Andy Griffith Show.
Very nice kits. There are quite a few kit offered by German and Austrian companies that use hard card stock and cardboard. They can't be distinguished from wood or plastic when completed by a competent modeler.
Very nice looking building, not a bad idea at all! FWIW, once you find one CityBuilder kit on Amazon, you can then look at the links on that page and find lots of others. Oddly, as you say, a search on Amazon turns up nothing!
Lee, Those are some great shots and buildings. If I can work through the maze/haze I will include a couple of photos of a paper model by Clever Models I made years back. It was one of their early offerings. I just had a hoot building it and was very pleased with the outcome.