okay, I made a short first draft sketch in about 5 minutes but I started to run into problems.
storns haven drft 1.jpg
As you may be able to see, I was able to make the interior palace, outer wall, large watchtowers and various stuff inside the caldera with a small (you probably can't see from the picture) lake, all inside the caldura, including a mine entrance. None of this i had any trouble, and i originally meant for this to be a simple sketch just to get my thoughts going, but I realised that, as I put the houses and village area on the exterior a few things:

1.) because of the steepness of the angle of the mountain side, it I had to find a way to make the area in which houses were built/carved flat, not at a steep angle (naturally) but to do that I had two options: I could dig them straight into the mountain, or create large "flats" or "stairs" in which the houses would sit upon.

2.) transportation is nearly impossible on the exterior of the mountain, which means I need to find some tunneling system in which you can easily exit/enter the mountain, especially with a cart, wagon or animal.

3.) along side of the other two problems, I need to change my numbers. I origionally planned for most areas to be on the exterior of the mountain, being 80% exterior, 20% interior to make it realistic, but it doesn't work. I may need a stunning 40/60, unless I can develop a way that people would live on the exterior conveniently AND transport, or maybe it is best to develop the society (though with multiple other technical issues as discussed) subterrainian. What do you guys think?