I released a concrete quay and the overpass support network seen in the picture. The quay is very straight forward, but the overpass is a little illogical in how it behaves as I had to make it a weird road/quay hybrid. :P Still quicker to use than the props and much more flexible, so it's a step up even if it isn't perfect.
As I'm still getting a sense for how much I can do with my thumb I'm not sure what's next, but likely some small projects to start with. We'll see. :)