This site also has a basic guide to the area.
You might find the section on 'Maps and Images' helpful when planning a trip
(bit of a trek for you but if you're on the way over, give us a shout !
I'll have a look for others but if you want a proper chart there are lots of sites selling them. Go on go on. 'Twould be a nice souvenir
. Tastefully framed & displayed on the wall it would become a talking point