Ah, also, we should figure out what Paneru, the engineer (IIRC), can do.
@eaglejarl @Velorien @OliWhail if you'd provide us this information, it could help us better plan; we've had her for long enough to figure that out.
For instance, if she had an earth-reshaping technique to create the traditional Pangolin dome (I believe that's how they build them?
@faflec, confirm?), it would make 5SB significantly more effective.
Also
@faflec, note that the way we apply 5SB is by utilizing Excavation Technique (or pangolin equivalent) to create divots in the structure, then smoothing it over with mud so that it is a different object from the MEW.
Paneru would also be very helpful, I'm sure, in digging escape tunnels. She might also be skilled in trapworks and be able to help us there.