I think this looks excellent, if I drove by that house I'd definitely think a ham lived there. Probably the first door I'd knock on if I were in desperate need of a vacuum tube. The inclusion of many types and sizes of antennas also reinforces that this is some kind of core site for the mesh network infrastructure that this guy is maintaining. I think a cantenna fed dish or a dipole strung across some trees would fit nicely in this scene as well, especially if you're looking for an amateur or distressed quality. This setup looks nicely put together and organized.
This sounds like a really interesting setting! I hope your party is into it. I also really like the art style of this image. It's like an impressionist diagram in an old technical manual.