If you stick with the main battles for the villages and ridges, you can focus on maybe 2 or 3 that you would need a HASL map for, with several scenarios at each one. You can probably get away with geomorphic for some smaller villages or the trail itself but the terrain is a PITA for both those who actually traverse it and for those trying to simulate what went on there in WW2. I sure wish you luck, I'm pausing my Kokoda research to see what comes out of this and maybe fill in with some smaller actions once I know what everyone else is doing with it. All I know is this was a great campaign for the Allies, both stopping the Japanese advance and then the long slog taking the trail back. It was just as big a turning point for the Anzacs as Guadalcanal was for the USA. It deserves a true HASL devoted to parts of it, we can get by with the other boards and/or overlays as needed for stuff that does not get the full HASL treatment. I look forward to what the ASL community comes up with, I know I'm all in on playing scenarios for it.