So, I decided that since I could no longer make the mega-map at full resolution (due to limitations of MS Paint), I'm going to make it at half-resolution (pic related is at 1/4 resolution).
https://www.dropbox.com/s/qk8a912c0c9zx2x/rpg-maker-map-113.pngThoughts on the current layout? Note that Melbourne/Geelong, Route 7, Route 18 and the southern bit of Route 16 are placeholders more than anything. Also, if you see a barrier made of nothing but the same kind of rock over and over again, instead of a mostly-even mix of the different rock types, just assume I haven't gotten around to mixing up the rocks on that route yet.