Dark Dreams of Furiae - a new module for NWN:EE! Buy now
I have completed Dorn's quest line. As it happens, the Gorge was full of Ankhegs, and we returned from there carrying 30(!) ankheg shells. Now, I also have something like 8 spare full plate and full plate +1 armors, not to mention the Red Dragon and Shadow Dragon armors, so I clearly don't need to manufacture any Ankheg armors.
In BG1 there was an armorer who would buy spare ankheg shells, but nobody in Athkatla seems interested. Is there in fact any place that has a demand for such things? Trademeet? The Underdark? Spellhold?