For sure, its definitely a cool map. The learning curve is a little steep, since its sufficiently different from other maps I've played that I can't really do like a ready substitution from previous experience, but I dig it. Just loaded that last save with the map details off, and its interesting to see the difference. I think I should have also mulled over the notes a bit more, but it was fun diving in.
Yeah I think you're right about using the spawns as the basic building blocks. Especially since the other cheap ground units often have one resource that is really expensive driving the cap.