Have fun with the place! The lever system should be fairly self-explanatory, but be careful with the lower levels of the lever system because there's at least one lever down there that will flood almost the entire base by opening the aquifer-fed power supply reservoir gate. It's important to drain the reservoir by one of the 8 containment bridges before opening it to the rest of the fort.
Also, I dismantled some of the perimeter cage traps for some reason, you'll probably want to fix that. Finally, watch with great care for the Kea, bastard is armed and dangerous with two(!?!) stolen artifact crossbows. Give me a shout if you build anything cool in the place, I'd love to see