I'll use this post to show what my fortress actually looks like now.
Below is Z-level 143, decidedly outside, that open space is my courtyard, and the bit below is the ex-pond with a sparring yard below, and an archery range above (plans for a tower have been devised)
Next is floor 141, This contains all my main economy, that empty room on the left will be turned into a custom stockpile for gold ore, and changed as my metalsmith plows through it. 3 of the cages on the animal pile have monkeys in them. God knows what i'll do with them
The living quarters are on 140, the great hall and a bunch of bedrooms, more are being carved out, the luxurious quarters at the bottom are for the Peasant-turned-Book-keeper.
There are two levels of just up/down stairways (one of which some dwarf randomly dumped gold ore on) surrounded by alumite. Then we come to the fabled BASALT MINES OF DEVILHALLS.
Floor 137:
Everything below this is just stairs (one of which I discovered some gems as I was constructing) down to level 127 where I couldn't dig any further.